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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
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datatypes.html
18.84
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datetime.html
261.02
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dbhash.html
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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
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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
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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
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scrolledtext.html
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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
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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
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someos.html
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spwd.html
12.25
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sqlite3.html
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ssl.html
214.5
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stat.html
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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
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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
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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
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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
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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
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xml.dom.minidom.html
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xml.dom.pulldom.html
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xml.etree.elementtree.html
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xml.html
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xml.sax.handler.html
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xml.sax.html
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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>32.3. symtable — Access to the compiler’s symbol tables — 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="32.4. symbol — Constants used with Python parse trees" href="symbol.html" /> <link rel="prev" title="32.2. ast — Abstract Syntax Trees" href="ast.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> <link rel="canonical" href="file:///usr/share/doc/python2.7/html/library/symtable.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/symtable.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="symbol.html" title="32.4. symbol — Constants used with Python parse trees" accesskey="N">next</a> |</li> <li class="right" > <a href="ast.html" title="32.2. ast — Abstract Syntax Trees" 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="language.html" accesskey="U"><span class="section-number">32. </span>Python Language Services</a> »</li> <li class="nav-item nav-item-this"><a href=""><span class="section-number">32.3. </span><code class="xref py py-mod docutils literal notranslate"><span class="pre">symtable</span></code> — Access to the compiler’s symbol tables</a></li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <section id="module-symtable"> <span id="symtable-access-to-the-compiler-s-symbol-tables"></span><h1><span class="section-number">32.3. </span><a class="reference internal" href="#module-symtable" title="symtable: Interface to the compiler's internal symbol tables."><code class="xref py py-mod docutils literal notranslate"><span class="pre">symtable</span></code></a> — Access to the compiler’s symbol tables<a class="headerlink" href="#module-symtable" 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/symtable.py">Lib/symtable.py</a></p> <hr class="docutils" /> <p>Symbol tables are generated by the compiler from AST just before bytecode is generated. The symbol table is responsible for calculating the scope of every identifier in the code. <a class="reference internal" href="#module-symtable" title="symtable: Interface to the compiler's internal symbol tables."><code class="xref py py-mod docutils literal notranslate"><span class="pre">symtable</span></code></a> provides an interface to examine these tables.</p> <section id="generating-symbol-tables"> <h2><span class="section-number">32.3.1. </span>Generating Symbol Tables<a class="headerlink" href="#generating-symbol-tables" title="Permalink to this headline">¶</a></h2> <dl class="py function"> <dt class="sig sig-object py" id="symtable.symtable"> <span class="sig-prename descclassname"><span class="pre">symtable.</span></span><span class="sig-name descname"><span class="pre">symtable</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">filename</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">compile_type</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#symtable.symtable" title="Permalink to this definition">¶</a></dt> <dd><p>Return the toplevel <a class="reference internal" href="#symtable.SymbolTable" title="symtable.SymbolTable"><code class="xref py py-class docutils literal notranslate"><span class="pre">SymbolTable</span></code></a> for the Python source <em>code</em>. <em>filename</em> is the name of the file containing the code. <em>compile_type</em> is like the <em>mode</em> argument to <a class="reference internal" href="functions.html#compile" title="compile"><code class="xref py py-func docutils literal notranslate"><span class="pre">compile()</span></code></a>.</p> </dd></dl> </section> <section id="examining-symbol-tables"> <h2><span class="section-number">32.3.2. </span>Examining Symbol Tables<a class="headerlink" href="#examining-symbol-tables" title="Permalink to this headline">¶</a></h2> <dl class="py class"> <dt class="sig sig-object py" id="symtable.SymbolTable"> <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">symtable.</span></span><span class="sig-name descname"><span class="pre">SymbolTable</span></span><a class="headerlink" href="#symtable.SymbolTable" title="Permalink to this definition">¶</a></dt> <dd><p>A namespace table for a block. The constructor is not public.</p> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.get_type"> <span class="sig-name descname"><span class="pre">get_type</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.get_type" title="Permalink to this definition">¶</a></dt> <dd><p>Return the type of the symbol table. Possible values are <code class="docutils literal notranslate"><span class="pre">'class'</span></code>, <code class="docutils literal notranslate"><span class="pre">'module'</span></code>, and <code class="docutils literal notranslate"><span class="pre">'function'</span></code>.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.get_id"> <span class="sig-name descname"><span class="pre">get_id</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.get_id" title="Permalink to this definition">¶</a></dt> <dd><p>Return the table’s identifier.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.get_name"> <span class="sig-name descname"><span class="pre">get_name</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.get_name" title="Permalink to this definition">¶</a></dt> <dd><p>Return the table’s name. This is the name of the class if the table is for a class, the name of the function if the table is for a function, or <code class="docutils literal notranslate"><span class="pre">'top'</span></code> if the table is global (<a class="reference internal" href="#symtable.SymbolTable.get_type" title="symtable.SymbolTable.get_type"><code class="xref py py-meth docutils literal notranslate"><span class="pre">get_type()</span></code></a> returns <code class="docutils literal notranslate"><span class="pre">'module'</span></code>).</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.get_lineno"> <span class="sig-name descname"><span class="pre">get_lineno</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.get_lineno" title="Permalink to this definition">¶</a></dt> <dd><p>Return the number of the first line in the block this table represents.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.is_optimized"> <span class="sig-name descname"><span class="pre">is_optimized</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.is_optimized" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the locals in this table can be optimized.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.is_nested"> <span class="sig-name descname"><span class="pre">is_nested</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.is_nested" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the block is a nested class or function.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.has_children"> <span class="sig-name descname"><span class="pre">has_children</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.has_children" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the block has nested namespaces within it. These can be obtained with <a class="reference internal" href="#symtable.SymbolTable.get_children" title="symtable.SymbolTable.get_children"><code class="xref py py-meth docutils literal notranslate"><span class="pre">get_children()</span></code></a>.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.has_exec"> <span class="sig-name descname"><span class="pre">has_exec</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.has_exec" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the block uses <code class="docutils literal notranslate"><span class="pre">exec</span></code>.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.has_import_star"> <span class="sig-name descname"><span class="pre">has_import_star</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.has_import_star" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the block uses a starred from-import.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.get_identifiers"> <span class="sig-name descname"><span class="pre">get_identifiers</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.get_identifiers" title="Permalink to this definition">¶</a></dt> <dd><p>Return a list of names of symbols in this table.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.lookup"> <span class="sig-name descname"><span class="pre">lookup</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">name</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.lookup" title="Permalink to this definition">¶</a></dt> <dd><p>Lookup <em>name</em> in the table and return a <a class="reference internal" href="#symtable.Symbol" title="symtable.Symbol"><code class="xref py py-class docutils literal notranslate"><span class="pre">Symbol</span></code></a> instance.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.get_symbols"> <span class="sig-name descname"><span class="pre">get_symbols</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.get_symbols" title="Permalink to this definition">¶</a></dt> <dd><p>Return a list of <a class="reference internal" href="#symtable.Symbol" title="symtable.Symbol"><code class="xref py py-class docutils literal notranslate"><span class="pre">Symbol</span></code></a> instances for names in the table.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.SymbolTable.get_children"> <span class="sig-name descname"><span class="pre">get_children</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.SymbolTable.get_children" title="Permalink to this definition">¶</a></dt> <dd><p>Return a list of the nested symbol tables.</p> </dd></dl> </dd></dl> <dl class="py class"> <dt class="sig sig-object py" id="symtable.Function"> <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">symtable.</span></span><span class="sig-name descname"><span class="pre">Function</span></span><a class="headerlink" href="#symtable.Function" title="Permalink to this definition">¶</a></dt> <dd><p>A namespace for a function or method. This class inherits <a class="reference internal" href="#symtable.SymbolTable" title="symtable.SymbolTable"><code class="xref py py-class docutils literal notranslate"><span class="pre">SymbolTable</span></code></a>.</p> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Function.get_parameters"> <span class="sig-name descname"><span class="pre">get_parameters</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Function.get_parameters" title="Permalink to this definition">¶</a></dt> <dd><p>Return a tuple containing names of parameters to this function.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Function.get_locals"> <span class="sig-name descname"><span class="pre">get_locals</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Function.get_locals" title="Permalink to this definition">¶</a></dt> <dd><p>Return a tuple containing names of locals in this function.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Function.get_globals"> <span class="sig-name descname"><span class="pre">get_globals</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Function.get_globals" title="Permalink to this definition">¶</a></dt> <dd><p>Return a tuple containing names of globals in this function.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Function.get_frees"> <span class="sig-name descname"><span class="pre">get_frees</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Function.get_frees" title="Permalink to this definition">¶</a></dt> <dd><p>Return a tuple containing names of free variables in this function.</p> </dd></dl> </dd></dl> <dl class="py class"> <dt class="sig sig-object py" id="symtable.Class"> <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">symtable.</span></span><span class="sig-name descname"><span class="pre">Class</span></span><a class="headerlink" href="#symtable.Class" title="Permalink to this definition">¶</a></dt> <dd><p>A namespace of a class. This class inherits <a class="reference internal" href="#symtable.SymbolTable" title="symtable.SymbolTable"><code class="xref py py-class docutils literal notranslate"><span class="pre">SymbolTable</span></code></a>.</p> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Class.get_methods"> <span class="sig-name descname"><span class="pre">get_methods</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Class.get_methods" title="Permalink to this definition">¶</a></dt> <dd><p>Return a tuple containing the names of methods declared in the class.</p> </dd></dl> </dd></dl> <dl class="py class"> <dt class="sig sig-object py" id="symtable.Symbol"> <em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">symtable.</span></span><span class="sig-name descname"><span class="pre">Symbol</span></span><a class="headerlink" href="#symtable.Symbol" title="Permalink to this definition">¶</a></dt> <dd><p>An entry in a <a class="reference internal" href="#symtable.SymbolTable" title="symtable.SymbolTable"><code class="xref py py-class docutils literal notranslate"><span class="pre">SymbolTable</span></code></a> corresponding to an identifier in the source. The constructor is not public.</p> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.get_name"> <span class="sig-name descname"><span class="pre">get_name</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.get_name" title="Permalink to this definition">¶</a></dt> <dd><p>Return the symbol’s name.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.is_referenced"> <span class="sig-name descname"><span class="pre">is_referenced</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.is_referenced" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the symbol is used in its block.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.is_imported"> <span class="sig-name descname"><span class="pre">is_imported</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.is_imported" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the symbol is created from an import statement.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.is_parameter"> <span class="sig-name descname"><span class="pre">is_parameter</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.is_parameter" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the symbol is a parameter.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.is_global"> <span class="sig-name descname"><span class="pre">is_global</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.is_global" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the symbol is global.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.is_declared_global"> <span class="sig-name descname"><span class="pre">is_declared_global</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.is_declared_global" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the symbol is declared global with a global statement.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.is_local"> <span class="sig-name descname"><span class="pre">is_local</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.is_local" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the symbol is local to its block.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.is_free"> <span class="sig-name descname"><span class="pre">is_free</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.is_free" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the symbol is referenced in its block, but not assigned to.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.is_assigned"> <span class="sig-name descname"><span class="pre">is_assigned</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.is_assigned" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if the symbol is assigned to in its block.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.is_namespace"> <span class="sig-name descname"><span class="pre">is_namespace</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.is_namespace" title="Permalink to this definition">¶</a></dt> <dd><p>Return <code class="docutils literal notranslate"><span class="pre">True</span></code> if name binding introduces new namespace.</p> <p>If the name is used as the target of a function or class statement, this will be true.</p> <p>For example:</p> <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">table</span> <span class="o">=</span> <span class="n">symtable</span><span class="o">.</span><span class="n">symtable</span><span class="p">(</span><span class="s2">"def some_func(): pass"</span><span class="p">,</span> <span class="s2">"string"</span><span class="p">,</span> <span class="s2">"exec"</span><span class="p">)</span> <span class="gp">>>> </span><span class="n">table</span><span class="o">.</span><span class="n">lookup</span><span class="p">(</span><span class="s2">"some_func"</span><span class="p">)</span><span class="o">.</span><span class="n">is_namespace</span><span class="p">()</span> <span class="go">True</span> </pre></div> </div> <p>Note that a single name can be bound to multiple objects. If the result is <code class="docutils literal notranslate"><span class="pre">True</span></code>, the name may also be bound to other objects, like an int or list, that does not introduce a new namespace.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.get_namespaces"> <span class="sig-name descname"><span class="pre">get_namespaces</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.get_namespaces" title="Permalink to this definition">¶</a></dt> <dd><p>Return a list of namespaces bound to this name.</p> </dd></dl> <dl class="py method"> <dt class="sig sig-object py" id="symtable.Symbol.get_namespace"> <span class="sig-name descname"><span class="pre">get_namespace</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#symtable.Symbol.get_namespace" title="Permalink to this definition">¶</a></dt> <dd><p>Return the namespace bound to this name. If more than one namespace is bound, a <code class="xref py py-exc docutils literal notranslate"><span class="pre">ValueError</span></code> is raised.</p> </dd></dl> </dd></dl> </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="#">32.3. <code class="xref py py-mod docutils literal notranslate"><span class="pre">symtable</span></code> — Access to the compiler’s symbol tables</a><ul> <li><a class="reference internal" href="#generating-symbol-tables">32.3.1. Generating Symbol Tables</a></li> <li><a class="reference internal" href="#examining-symbol-tables">32.3.2. 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