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annotate planemo/lib/python3.7/site-packages/libpasteurize/fixes/fix_imports.py @ 1:56ad4e20f292 draft

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"planemo upload commit 6eee67778febed82ddd413c3ca40b3183a3898f1"
author guerler
date Fri, 31 Jul 2020 00:32:28 -0400
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1 u"""
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2 Fixer for standard library imports renamed in Python 3
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3 """
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4
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5 from lib2to3 import fixer_base
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6 from lib2to3.fixer_util import Name, is_probably_builtin, Newline, does_tree_import
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7 from lib2to3.pygram import python_symbols as syms
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8 from lib2to3.pgen2 import token
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9 from lib2to3.pytree import Node, Leaf
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10
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11 from libfuturize.fixer_util import touch_import_top
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12 # from ..fixer_util import NameImport
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13
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14 # used in simple_mapping_to_pattern()
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15 MAPPING = {u"reprlib": u"repr",
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16 u"winreg": u"_winreg",
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17 u"configparser": u"ConfigParser",
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18 u"copyreg": u"copy_reg",
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19 u"queue": u"Queue",
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20 u"socketserver": u"SocketServer",
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21 u"_markupbase": u"markupbase",
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22 u"test.support": u"test.test_support",
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23 u"dbm.bsd": u"dbhash",
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24 u"dbm.ndbm": u"dbm",
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25 u"dbm.dumb": u"dumbdbm",
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26 u"dbm.gnu": u"gdbm",
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27 u"html.parser": u"HTMLParser",
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28 u"html.entities": u"htmlentitydefs",
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29 u"http.client": u"httplib",
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30 u"http.cookies": u"Cookie",
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31 u"http.cookiejar": u"cookielib",
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32 # "tkinter": "Tkinter",
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33 u"tkinter.dialog": u"Dialog",
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34 u"tkinter._fix": u"FixTk",
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35 u"tkinter.scrolledtext": u"ScrolledText",
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36 u"tkinter.tix": u"Tix",
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37 u"tkinter.constants": u"Tkconstants",
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38 u"tkinter.dnd": u"Tkdnd",
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39 u"tkinter.__init__": u"Tkinter",
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40 u"tkinter.colorchooser": u"tkColorChooser",
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41 u"tkinter.commondialog": u"tkCommonDialog",
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42 u"tkinter.font": u"tkFont",
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43 u"tkinter.ttk": u"ttk",
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44 u"tkinter.messagebox": u"tkMessageBox",
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45 u"tkinter.turtle": u"turtle",
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46 u"urllib.robotparser": u"robotparser",
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47 u"xmlrpc.client": u"xmlrpclib",
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48 u"builtins": u"__builtin__",
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49 }
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50
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51 # generic strings to help build patterns
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52 # these variables mean (with http.client.HTTPConnection as an example):
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53 # name = http
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54 # attr = client
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55 # used = HTTPConnection
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56 # fmt_name is a formatted subpattern (simple_name_match or dotted_name_match)
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57
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58 # helps match 'queue', as in 'from queue import ...'
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59 simple_name_match = u"name='%s'"
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60 # helps match 'client', to be used if client has been imported from http
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61 subname_match = u"attr='%s'"
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62 # helps match 'http.client', as in 'import urllib.request'
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63 dotted_name_match = u"dotted_name=dotted_name< %s '.' %s >"
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64 # helps match 'queue', as in 'queue.Queue(...)'
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65 power_onename_match = u"%s"
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66 # helps match 'http.client', as in 'http.client.HTTPConnection(...)'
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67 power_twoname_match = u"power< %s trailer< '.' %s > any* >"
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68 # helps match 'client.HTTPConnection', if 'client' has been imported from http
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69 power_subname_match = u"power< %s any* >"
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70 # helps match 'from http.client import HTTPConnection'
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71 from_import_match = u"from_import=import_from< 'from' %s 'import' imported=any >"
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72 # helps match 'from http import client'
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73 from_import_submod_match = u"from_import_submod=import_from< 'from' %s 'import' (%s | import_as_name< %s 'as' renamed=any > | import_as_names< any* (%s | import_as_name< %s 'as' renamed=any >) any* > ) >"
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74 # helps match 'import urllib.request'
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75 name_import_match = u"name_import=import_name< 'import' %s > | name_import=import_name< 'import' dotted_as_name< %s 'as' renamed=any > >"
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76 # helps match 'import http.client, winreg'
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77 multiple_name_import_match = u"name_import=import_name< 'import' dotted_as_names< names=any* > >"
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78
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79 def all_patterns(name):
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80 u"""
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81 Accepts a string and returns a pattern of possible patterns involving that name
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82 Called by simple_mapping_to_pattern for each name in the mapping it receives.
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83 """
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84
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85 # i_ denotes an import-like node
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86 # u_ denotes a node that appears to be a usage of the name
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87 if u'.' in name:
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88 name, attr = name.split(u'.', 1)
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89 simple_name = simple_name_match % (name)
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90 simple_attr = subname_match % (attr)
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91 dotted_name = dotted_name_match % (simple_name, simple_attr)
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92 i_from = from_import_match % (dotted_name)
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93 i_from_submod = from_import_submod_match % (simple_name, simple_attr, simple_attr, simple_attr, simple_attr)
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94 i_name = name_import_match % (dotted_name, dotted_name)
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95 u_name = power_twoname_match % (simple_name, simple_attr)
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96 u_subname = power_subname_match % (simple_attr)
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97 return u' | \n'.join((i_name, i_from, i_from_submod, u_name, u_subname))
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98 else:
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99 simple_name = simple_name_match % (name)
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100 i_name = name_import_match % (simple_name, simple_name)
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101 i_from = from_import_match % (simple_name)
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102 u_name = power_onename_match % (simple_name)
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103 return u' | \n'.join((i_name, i_from, u_name))
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104
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105
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106 class FixImports(fixer_base.BaseFix):
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107
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108 PATTERN = u' | \n'.join([all_patterns(name) for name in MAPPING])
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109 PATTERN = u' | \n'.join((PATTERN, multiple_name_import_match))
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110
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111 def transform(self, node, results):
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112 touch_import_top(u'future', u'standard_library', node)