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2to3.html
63.71
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__builtin__.html
11.79
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__future__.html
15.58
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__main__.html
8.33
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_winreg.html
73.99
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abc.html
26.82
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aepack.html
15.47
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aetools.html
18.79
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aetypes.html
27.08
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aifc.html
29.59
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al.html
22.13
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allos.html
35.48
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anydbm.html
19.31
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archiving.html
10.64
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argparse.html
269.59
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array.html
35.35
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ast.html
42.42
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asynchat.html
35.84
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asyncore.html
43.22
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atexit.html
19.23
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audioop.html
41.32
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autogil.html
9.77
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base64.html
24.8
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basehttpserver.html
40.6
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bastion.html
13.02
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bdb.html
50.06
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binascii.html
26.64
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binhex.html
12.66
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bisect.html
28.52
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bsddb.html
32.02
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bz2.html
31.92
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calendar.html
50.16
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carbon.html
54.14
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cd.html
35.24
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cgi.html
58.4
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cgihttpserver.html
15.12
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cgitb.html
13.5
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chunk.html
17.41
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cmath.html
32.41
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cmd.html
32.69
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code.html
28.92
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codecs.html
125.92
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codeop.html
16.42
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collections.html
150.36
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colorpicker.html
9.02
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colorsys.html
14.38
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commands.html
16.63
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compileall.html
21.18
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compiler.html
78.14
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configparser.html
73.92
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constants.html
14.68
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contextlib.html
22.91
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cookie.html
45.38
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cookielib.html
102.78
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copy.html
14.21
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copy_reg.html
15.82
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crypt.html
11.62
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crypto.html
8.35
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csv.html
82.79
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ctypes.html
280.57
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curses.ascii.html
28.97
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curses.html
200.94
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curses.panel.html
18.43
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custominterp.html
8.59
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datatypes.html
18.84
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datetime.html
261.02
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dbhash.html
18.4
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dbm.html
14.75
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debug.html
11.28
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decimal.html
239.14
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development.html
15.27
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difflib.html
96.93
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dircache.html
13.66
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dis.html
96.52
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distribution.html
8.27
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distutils.html
10.97
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dl.html
19.27
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doctest.html
193.18
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docxmlrpcserver.html
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dumbdbm.html
16.74
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dummy_thread.html
11.04
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dummy_threading.html
9.96
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easydialogs.html
38.83
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email-examples.html
47.2
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email.charset.html
32.45
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email.encoders.html
14.09
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email.errors.html
19.2
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email.generator.html
24.78
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email.header.html
31.12
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email.html
55.3
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email.iterators.html
14.22
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email.message.html
74.91
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email.mime.html
34.51
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email.parser.html
37.09
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email.utils.html
30.04
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ensurepip.html
20.21
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errno.html
52.31
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exceptions.html
73.4
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fcntl.html
27.85
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filecmp.html
26.49
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fileformats.html
10.21
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fileinput.html
29.36
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filesys.html
11.55
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fl.html
71.58
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fm.html
15
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fnmatch.html
17.78
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formatter.html
43.91
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fpectl.html
17.84
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fpformat.html
12.65
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fractions.html
27.17
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framework.html
44.24
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frameworks.html
8.11
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ftplib.html
56.56
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functions.html
216.84
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functools.html
31.06
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future_builtins.html
15.9
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gc.html
30.74
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gdbm.html
19.35
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gensuitemodule.html
14.54
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getopt.html
26.56
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getpass.html
12.5
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gettext.html
91.32
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gl.html
26.71
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glob.html
15.42
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grp.html
12.33
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gzip.html
21.95
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hashlib.html
27.4
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heapq.html
36.72
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hmac.html
15.97
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hotshot.html
22.69
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htmllib.html
29.9
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htmlparser.html
45.11
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httplib.html
78.55
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i18n.html
10.61
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ic.html
22.03
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idle.html
45.74
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imageop.html
20.94
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imaplib.html
69.9
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imgfile.html
14.91
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imghdr.html
13.43
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imp.html
41.48
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importlib.html
10.27
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imputil.html
36.11
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index.html
82.54
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inspect.html
64.31
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internet.html
26.77
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intro.html
9.76
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io.html
122.3
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ipc.html
17.18
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itertools.html
129.91
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jpeg.html
15.36
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json.html
79.09
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keyword.html
9.27
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language.html
12.35
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linecache.html
12.7
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locale.html
68.54
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logging.config.html
82.23
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logging.handlers.html
91.96
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logging.html
123.15
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mac.html
24.49
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macos.html
18.51
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macosa.html
14.55
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macostools.html
19.67
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macpath.html
9.19
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mailbox.html
185.53
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mailcap.html
15.3
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markup.html
20.37
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marshal.html
19.88
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math.html
50.52
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md5.html
16.65
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mhlib.html
30.04
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mimetools.html
23.84
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mimetypes.html
35.82
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mimewriter.html
18.19
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mimify.html
16.96
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miniaeframe.html
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misc.html
7.77
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mm.html
10.19
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mmap.html
33.52
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modulefinder.html
19.85
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modules.html
9.68
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msilib.html
72.78
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msvcrt.html
24.1
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multifile.html
28.82
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multiprocessing.html
423.97
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mutex.html
13.56
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netdata.html
19.28
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netrc.html
15.51
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new.html
16.1
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nis.html
13.19
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nntplib.html
51.08
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numbers.html
40.91
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numeric.html
14.85
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operator.html
118.32
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optparse.html
251.08
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os.html
270.49
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os.path.html
48.87
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ossaudiodev.html
49.79
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othergui.html
9.98
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parser.html
44.52
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pdb.html
41.44
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persistence.html
16.25
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pickle.html
107.94
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pickletools.html
13.21
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pipes.html
21.85
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pkgutil.html
30.59
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platform.html
40.14
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plistlib.html
20.96
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popen2.html
30.13
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poplib.html
27.93
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posix.html
17.27
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posixfile.html
23.68
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pprint.html
36.42
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profile.html
76.65
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pty.html
11.42
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pwd.html
13.53
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py_compile.html
13.33
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pyclbr.html
18.14
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pydoc.html
14.33
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pyexpat.html
93.28
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python.html
13.53
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queue.html
29.64
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quopri.html
14.5
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random.html
47.78
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re.html
163.11
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readline.html
41.2
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repr.html
24.57
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resource.html
30.86
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restricted.html
12.69
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rexec.html
43.59
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rfc822.html
51.25
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rlcompleter.html
15.29
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robotparser.html
15.01
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runpy.html
23.55
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sched.html
21.76
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scrolledtext.html
10.67
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select.html
50.17
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sets.html
39.92
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sgi.html
11.09
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sgmllib.html
38.77
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sha.html
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shelve.html
32.93
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shlex.html
38.43
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shutil.html
49.49
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signal.html
36.52
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simplehttpserver.html
21.57
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simplexmlrpcserver.html
40.41
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site.html
29
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smtpd.html
15.64
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smtplib.html
51.86
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sndhdr.html
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socket.html
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socketserver.html
81.38
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someos.html
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spwd.html
12.25
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sqlite3.html
154.12
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ssl.html
214.5
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stat.html
41.11
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statvfs.html
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stdtypes.html
309.83
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string.html
129.58
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stringio.html
21.1
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stringprep.html
21.4
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strings.html
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struct.html
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subprocess.html
117
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sun.html
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sunau.html
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sunaudio.html
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symbol.html
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symtable.html
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sys.html
118.12
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sysconfig.html
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syslog.html
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tabnanny.html
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tarfile.html
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telnetlib.html
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tempfile.html
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termios.html
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test.html
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textwrap.html
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thread.html
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threading.html
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time.html
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timeit.html
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tix.html
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tk.html
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tkinter.html
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token.html
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tokenize.html
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trace.html
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traceback.html
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ttk.html
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tty.html
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turtle.html
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types.html
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undoc.html
25.54
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unicodedata.html
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unittest.html
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unix.html
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urllib.html
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urllib2.html
128.77
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urlparse.html
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user.html
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userdict.html
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uu.html
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uuid.html
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warnings.html
51.86
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wave.html
29.08
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weakref.html
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webbrowser.html
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whichdb.html
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windows.html
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winsound.html
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wsgiref.html
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xdrlib.html
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xml.dom.html
110.39
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xml.dom.minidom.html
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xml.dom.pulldom.html
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xml.etree.elementtree.html
124.2
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xml.html
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xml.sax.handler.html
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xml.sax.html
26.04
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xml.sax.reader.html
51.4
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xml.sax.utils.html
18.11
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xmlrpclib.html
71.79
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zipfile.html
67.26
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zipimport.html
24.32
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zlib.html
34.41
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<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> <title>21.5. wave — Read and write WAV files — Python 2.7.18 documentation</title> <link rel="stylesheet" type="text/css" href="../_static/pygments.css" /> <link rel="stylesheet" type="text/css" href="../_static/classic.css" /> <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script> <script src="../_static/jquery.js"></script> <script src="../_static/underscore.js"></script> <script src="../_static/doctools.js"></script> <script src="../_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 2.7.18 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="next" title="21.6. chunk — Read IFF chunked data" href="chunk.html" /> <link rel="prev" title="21.4. sunau — Read and write Sun AU files" href="sunau.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> <link rel="canonical" href="file:///usr/share/doc/python2.7/html/library/wave.html" /> <script type="text/javascript" src="../_static/copybutton.js"></script> </head><body> <div id="outdated-warning" style="padding: .5em; text-align: center; background-color: #FFBABA; color: #6A0E0E;"> This document is for an old version of Python that is <a href="https://devguide.python.org/devcycle/#end-of-life-branches">no longer supported</a>. You should install the python3 and python3-doc packages and read the <a href="file:///usr/share/doc/python3-doc/html/library/wave.html"> Python documentation for the Python3 version packaged in this release</a>. </div> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="chunk.html" title="21.6. chunk — Read IFF chunked data" accesskey="N">next</a> |</li> <li class="right" > <a href="sunau.html" title="21.4. sunau — Read and write Sun AU files" accesskey="P">previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="../index.html">Python 2.7.18 documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><a href="mm.html" accesskey="U"><span class="section-number">21. </span>Multimedia Services</a> »</li> <li class="nav-item nav-item-this"><a href=""><span class="section-number">21.5. </span><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code> — Read and write WAV files</a></li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <section id="module-wave"> <span id="wave-read-and-write-wav-files"></span><h1><span class="section-number">21.5. </span><a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a> — Read and write WAV files<a class="headerlink" href="#module-wave" title="Permalink to this headline">¶</a></h1> <p><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/2.7/Lib/wave.py">Lib/wave.py</a></p> <hr class="docutils" /> <p>The <a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a> module provides a convenient interface to the WAV sound format. It does not support compression/decompression, but it does support mono/stereo.</p> <p>The <a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a> module defines the following function and exception:</p> <dl class="py function"> <dt class="sig sig-object py" id="wave.open"> <span class="sig-prename descclassname"><span class="pre">wave.</span></span><span class="sig-name descname"><span class="pre">open</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">file</span></span></em><span class="optional">[</span>, <em class="sig-param"><span class="n"><span class="pre">mode</span></span></em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.open" title="Permalink to this definition">¶</a></dt> <dd><p>If <em>file</em> is a string, open the file by that name, otherwise treat it as a seekable file-like object. <em>mode</em> can be any of</p> <dl class="simple"> <dt><code class="docutils literal notranslate"><span class="pre">'r'</span></code>, <code class="docutils literal notranslate"><span class="pre">'rb'</span></code></dt><dd><p>Read only mode.</p> </dd> <dt><code class="docutils literal notranslate"><span class="pre">'w'</span></code>, <code class="docutils literal notranslate"><span class="pre">'wb'</span></code></dt><dd><p>Write only mode.</p> </dd> </dl> <p>Note that it does not allow read/write WAV files.</p> <p>A <em>mode</em> of <code class="docutils literal notranslate"><span class="pre">'r'</span></code> or <code class="docutils literal notranslate"><span class="pre">'rb'</span></code> returns a <code class="xref py py-class docutils literal notranslate"><span class="pre">Wave_read</span></code> object, while a <em>mode</em> of <code class="docutils literal notranslate"><span class="pre">'w'</span></code> or <code class="docutils literal notranslate"><span class="pre">'wb'</span></code> returns a <code class="xref py py-class docutils literal notranslate"><span class="pre">Wave_write</span></code> object. If <em>mode</em> is omitted and a file-like object is passed as <em>file</em>, <code class="docutils literal notranslate"><span class="pre">file.mode</span></code> is used as the default value for <em>mode</em> (the <code class="docutils literal notranslate"><span class="pre">'b'</span></code> flag is still added if necessary).</p> <p>If you pass in a file-like object, the wave object will not close it when its <code class="xref py py-meth docutils literal notranslate"><span class="pre">close()</span></code> method is called; it is the caller’s responsibility to close the file object.</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="wave.openfp"> <span class="sig-prename descclassname"><span class="pre">wave.</span></span><span class="sig-name descname"><span class="pre">openfp</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">file</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">mode</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.openfp" title="Permalink to this definition">¶</a></dt> <dd><p>A synonym for <a class="reference internal" href="#wave.open" title="wave.open"><code class="xref py py-func docutils literal notranslate"><span class="pre">open()</span></code></a>, maintained for backwards compatibility.</p> </dd></dl> <dl class="py exception"> <dt class="sig sig-object py" id="wave.Error"> <em class="property"><span class="pre">exception</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">wave.</span></span><span class="sig-name descname"><span class="pre">Error</span></span><a class="headerlink" href="#wave.Error" title="Permalink to this definition">¶</a></dt> <dd><p>An error raised when something is impossible because it violates the WAV specification or hits an implementation deficiency.</p> </dd></dl> <section id="wave-read-objects"> <span id="id1"></span><h2><span class="section-number">21.5.1. </span>Wave_read Objects<a class="headerlink" href="#wave-read-objects" title="Permalink to this headline">¶</a></h2> <p>Wave_read objects, as returned by <a class="reference internal" href="#wave.open" title="wave.open"><code class="xref py py-func docutils literal notranslate"><span class="pre">open()</span></code></a>, have the following methods:</p> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.close"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">close</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.close" title="Permalink to this definition">¶</a></dt> <dd><p>Close the stream if it was opened by <a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a>, and make the instance unusable. This is called automatically on object collection.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.getnchannels"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">getnchannels</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getnchannels" title="Permalink to this definition">¶</a></dt> <dd><p>Returns number of audio channels (<code class="docutils literal notranslate"><span class="pre">1</span></code> for mono, <code class="docutils literal notranslate"><span class="pre">2</span></code> for stereo).</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.getsampwidth"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">getsampwidth</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getsampwidth" title="Permalink to this definition">¶</a></dt> <dd><p>Returns sample width in bytes.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.getframerate"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">getframerate</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getframerate" title="Permalink to this definition">¶</a></dt> <dd><p>Returns sampling frequency.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.getnframes"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">getnframes</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getnframes" title="Permalink to this definition">¶</a></dt> <dd><p>Returns number of audio frames.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.getcomptype"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">getcomptype</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getcomptype" title="Permalink to this definition">¶</a></dt> <dd><p>Returns compression type (<code class="docutils literal notranslate"><span class="pre">'NONE'</span></code> is the only supported type).</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.getcompname"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">getcompname</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getcompname" title="Permalink to this definition">¶</a></dt> <dd><p>Human-readable version of <a class="reference internal" href="#wave.Wave_read.getcomptype" title="wave.Wave_read.getcomptype"><code class="xref py py-meth docutils literal notranslate"><span class="pre">getcomptype()</span></code></a>. Usually <code class="docutils literal notranslate"><span class="pre">'not</span> <span class="pre">compressed'</span></code> parallels <code class="docutils literal notranslate"><span class="pre">'NONE'</span></code>.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.getparams"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">getparams</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getparams" title="Permalink to this definition">¶</a></dt> <dd><p>Returns a tuple <code class="docutils literal notranslate"><span class="pre">(nchannels,</span> <span class="pre">sampwidth,</span> <span class="pre">framerate,</span> <span class="pre">nframes,</span> <span class="pre">comptype,</span> <span class="pre">compname)</span></code>, equivalent to output of the <code class="xref py py-meth docutils literal notranslate"><span class="pre">get*()</span></code> methods.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.readframes"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">readframes</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.readframes" title="Permalink to this definition">¶</a></dt> <dd><p>Reads and returns at most <em>n</em> frames of audio, as a string of bytes.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.rewind"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">rewind</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.rewind" title="Permalink to this definition">¶</a></dt> <dd><p>Rewind the file pointer to the beginning of the audio stream.</p> </dd></dl> <p>The following two methods are defined for compatibility with the <a class="reference internal" href="aifc.html#module-aifc" title="aifc: Read and write audio files in AIFF or AIFC format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">aifc</span></code></a> module, and don’t do anything interesting.</p> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.getmarkers"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">getmarkers</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getmarkers" title="Permalink to this definition">¶</a></dt> <dd><p>Returns <code class="docutils literal notranslate"><span class="pre">None</span></code>.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.getmark"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">getmark</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">id</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.getmark" title="Permalink to this definition">¶</a></dt> <dd><p>Raise an error.</p> </dd></dl> <p>The following two methods define a term “position” which is compatible between them, and is otherwise implementation dependent.</p> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.setpos"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">setpos</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">pos</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.setpos" title="Permalink to this definition">¶</a></dt> <dd><p>Set the file pointer to the specified position.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_read.tell"> <span class="sig-prename descclassname"><span class="pre">Wave_read.</span></span><span class="sig-name descname"><span class="pre">tell</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_read.tell" title="Permalink to this definition">¶</a></dt> <dd><p>Return current file pointer position.</p> </dd></dl> </section> <section id="wave-write-objects"> <span id="id2"></span><h2><span class="section-number">21.5.2. </span>Wave_write Objects<a class="headerlink" href="#wave-write-objects" title="Permalink to this headline">¶</a></h2> <p>Wave_write objects, as returned by <a class="reference internal" href="#wave.open" title="wave.open"><code class="xref py py-func docutils literal notranslate"><span class="pre">open()</span></code></a>, have the following methods:</p> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.close"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">close</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.close" title="Permalink to this definition">¶</a></dt> <dd><p>Make sure <em>nframes</em> is correct, and close the file if it was opened by <a class="reference internal" href="#module-wave" title="wave: Provide an interface to the WAV sound format."><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code></a>. This method is called upon object collection.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.setnchannels"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">setnchannels</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setnchannels" title="Permalink to this definition">¶</a></dt> <dd><p>Set the number of channels.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.setsampwidth"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">setsampwidth</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setsampwidth" title="Permalink to this definition">¶</a></dt> <dd><p>Set the sample width to <em>n</em> bytes.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.setframerate"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">setframerate</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setframerate" title="Permalink to this definition">¶</a></dt> <dd><p>Set the frame rate to <em>n</em>.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.setnframes"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">setnframes</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">n</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setnframes" title="Permalink to this definition">¶</a></dt> <dd><p>Set the number of frames to <em>n</em>. This will be changed later if more frames are written.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.setcomptype"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">setcomptype</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">type</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">name</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setcomptype" title="Permalink to this definition">¶</a></dt> <dd><p>Set the compression type and description. At the moment, only compression type <code class="docutils literal notranslate"><span class="pre">NONE</span></code> is supported, meaning no compression.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.setparams"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">setparams</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">tuple</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.setparams" title="Permalink to this definition">¶</a></dt> <dd><p>The <em>tuple</em> should be <code class="docutils literal notranslate"><span class="pre">(nchannels,</span> <span class="pre">sampwidth,</span> <span class="pre">framerate,</span> <span class="pre">nframes,</span> <span class="pre">comptype,</span> <span class="pre">compname)</span></code>, with values valid for the <code class="xref py py-meth docutils literal notranslate"><span class="pre">set*()</span></code> methods. Sets all parameters.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.tell"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">tell</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.tell" title="Permalink to this definition">¶</a></dt> <dd><p>Return current position in the file, with the same disclaimer for the <a class="reference internal" href="#wave.Wave_read.tell" title="wave.Wave_read.tell"><code class="xref py py-meth docutils literal notranslate"><span class="pre">Wave_read.tell()</span></code></a> and <a class="reference internal" href="#wave.Wave_read.setpos" title="wave.Wave_read.setpos"><code class="xref py py-meth docutils literal notranslate"><span class="pre">Wave_read.setpos()</span></code></a> methods.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.writeframesraw"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">writeframesraw</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.writeframesraw" title="Permalink to this definition">¶</a></dt> <dd><p>Write audio frames, without correcting <em>nframes</em>.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="wave.Wave_write.writeframes"> <span class="sig-prename descclassname"><span class="pre">Wave_write.</span></span><span class="sig-name descname"><span class="pre">writeframes</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">data</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#wave.Wave_write.writeframes" title="Permalink to this definition">¶</a></dt> <dd><p>Write audio frames and make sure <em>nframes</em> is correct.</p> </dd></dl> <p>Note that it is invalid to set any parameters after calling <code class="xref py py-meth docutils literal notranslate"><span class="pre">writeframes()</span></code> or <code class="xref py py-meth docutils literal notranslate"><span class="pre">writeframesraw()</span></code>, and any attempt to do so will raise <a class="reference internal" href="#wave.Error" title="wave.Error"><code class="xref py py-exc docutils literal notranslate"><span class="pre">wave.Error</span></code></a>.</p> </section> </section> <div class="clearer"></div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h3><a href="../contents.html">Table of Contents</a></h3> <ul> <li><a class="reference internal" href="#">21.5. <code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code> — Read and write WAV files</a><ul> <li><a class="reference internal" href="#wave-read-objects">21.5.1. Wave_read Objects</a></li> <li><a class="reference internal" href="#wave-write-objects">21.5.2. Wave_write Objects</a></li> </ul> </li> </ul> <h4>Previous topic</h4> <p class="topless"><a href="sunau.html" title="previous chapter"><span class="section-number">21.4. </span><code class="xref py py-mod docutils literal notranslate"><span class="pre">sunau</span></code> — Read and write Sun AU files</a></p> <h4>Next topic</h4> <p class="topless"><a href="chunk.html" title="next chapter"><span class="section-number">21.6. </span><code class="xref py py-mod docutils literal notranslate"><span class="pre">chunk</span></code> — Read IFF chunked data</a></p> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../_sources/library/wave.rst.txt" rel="nofollow">Show Source</a></li> </ul> </div> <div id="searchbox" style="display: none" role="search"> <h3 id="searchlabel">Quick search</h3> <div class="searchformwrapper"> <form class="search" action="../search.html" method="get"> <input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/> <input type="submit" value="Go" /> </form> </div> </div> <script>$('#searchbox').show(0);</script> </div> </div> <div class="clearer"></div> </div> <div class="related" role="navigation" aria-label="related navigation"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="chunk.html" title="21.6. chunk — Read IFF chunked data" >next</a> |</li> <li class="right" > <a href="sunau.html" title="21.4. sunau — Read and write Sun AU files" >previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li> <a href="../index.html">Python 2.7.18 documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><a href="mm.html" ><span class="section-number">21. </span>Multimedia Services</a> »</li> <li class="nav-item nav-item-this"><a href=""><span class="section-number">21.5. </span><code class="xref py py-mod docutils literal notranslate"><span class="pre">wave</span></code> — Read and write WAV files</a></li> </ul> </div> <div class="footer"> © <a href="../copyright.html">Copyright</a> 1990-2024, Python Software Foundation. <br /> The Python Software Foundation is a non-profit corporation. <a href="https://www.python.org/psf/donations/">Please donate.</a> <br /> Last updated on December 09, 2024. <a href="../bugs.html">Found a bug</a>? <br /> Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 4.3.2. </div> </body> </html>
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