forked from axiom-team/astrXbian
113 lines
4.8 KiB
Python
113 lines
4.8 KiB
Python
u"""
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Fixer for standard library imports renamed in Python 3
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"""
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from lib2to3 import fixer_base
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from lib2to3.fixer_util import Name, is_probably_builtin, Newline, does_tree_import
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from lib2to3.pygram import python_symbols as syms
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from lib2to3.pgen2 import token
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from lib2to3.pytree import Node, Leaf
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from libfuturize.fixer_util import touch_import_top
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# from ..fixer_util import NameImport
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# used in simple_mapping_to_pattern()
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MAPPING = {u"reprlib": u"repr",
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u"winreg": u"_winreg",
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u"configparser": u"ConfigParser",
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u"copyreg": u"copy_reg",
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u"queue": u"Queue",
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u"socketserver": u"SocketServer",
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u"_markupbase": u"markupbase",
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u"test.support": u"test.test_support",
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u"dbm.bsd": u"dbhash",
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u"dbm.ndbm": u"dbm",
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u"dbm.dumb": u"dumbdbm",
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u"dbm.gnu": u"gdbm",
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u"html.parser": u"HTMLParser",
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u"html.entities": u"htmlentitydefs",
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u"http.client": u"httplib",
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u"http.cookies": u"Cookie",
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u"http.cookiejar": u"cookielib",
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# "tkinter": "Tkinter",
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u"tkinter.dialog": u"Dialog",
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u"tkinter._fix": u"FixTk",
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u"tkinter.scrolledtext": u"ScrolledText",
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u"tkinter.tix": u"Tix",
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u"tkinter.constants": u"Tkconstants",
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u"tkinter.dnd": u"Tkdnd",
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u"tkinter.__init__": u"Tkinter",
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u"tkinter.colorchooser": u"tkColorChooser",
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u"tkinter.commondialog": u"tkCommonDialog",
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u"tkinter.font": u"tkFont",
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u"tkinter.ttk": u"ttk",
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u"tkinter.messagebox": u"tkMessageBox",
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u"tkinter.turtle": u"turtle",
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u"urllib.robotparser": u"robotparser",
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u"xmlrpc.client": u"xmlrpclib",
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u"builtins": u"__builtin__",
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}
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# generic strings to help build patterns
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# these variables mean (with http.client.HTTPConnection as an example):
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# name = http
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# attr = client
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# used = HTTPConnection
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# fmt_name is a formatted subpattern (simple_name_match or dotted_name_match)
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# helps match 'queue', as in 'from queue import ...'
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simple_name_match = u"name='%s'"
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# helps match 'client', to be used if client has been imported from http
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subname_match = u"attr='%s'"
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# helps match 'http.client', as in 'import urllib.request'
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dotted_name_match = u"dotted_name=dotted_name< %s '.' %s >"
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# helps match 'queue', as in 'queue.Queue(...)'
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power_onename_match = u"%s"
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# helps match 'http.client', as in 'http.client.HTTPConnection(...)'
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power_twoname_match = u"power< %s trailer< '.' %s > any* >"
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# helps match 'client.HTTPConnection', if 'client' has been imported from http
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power_subname_match = u"power< %s any* >"
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# helps match 'from http.client import HTTPConnection'
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from_import_match = u"from_import=import_from< 'from' %s 'import' imported=any >"
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# helps match 'from http import client'
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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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# helps match 'import urllib.request'
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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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# helps match 'import http.client, winreg'
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multiple_name_import_match = u"name_import=import_name< 'import' dotted_as_names< names=any* > >"
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def all_patterns(name):
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u"""
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Accepts a string and returns a pattern of possible patterns involving that name
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Called by simple_mapping_to_pattern for each name in the mapping it receives.
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"""
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# i_ denotes an import-like node
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# u_ denotes a node that appears to be a usage of the name
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if u'.' in name:
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name, attr = name.split(u'.', 1)
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simple_name = simple_name_match % (name)
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simple_attr = subname_match % (attr)
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dotted_name = dotted_name_match % (simple_name, simple_attr)
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i_from = from_import_match % (dotted_name)
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i_from_submod = from_import_submod_match % (simple_name, simple_attr, simple_attr, simple_attr, simple_attr)
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i_name = name_import_match % (dotted_name, dotted_name)
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u_name = power_twoname_match % (simple_name, simple_attr)
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u_subname = power_subname_match % (simple_attr)
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return u' | \n'.join((i_name, i_from, i_from_submod, u_name, u_subname))
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else:
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simple_name = simple_name_match % (name)
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i_name = name_import_match % (simple_name, simple_name)
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i_from = from_import_match % (simple_name)
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u_name = power_onename_match % (simple_name)
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return u' | \n'.join((i_name, i_from, u_name))
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class FixImports(fixer_base.BaseFix):
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PATTERN = u' | \n'.join([all_patterns(name) for name in MAPPING])
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PATTERN = u' | \n'.join((PATTERN, multiple_name_import_match))
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def transform(self, node, results):
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touch_import_top(u'future', u'standard_library', node)
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