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Utility functions from 2to3, 3to2 and python-modernize (and some home-grown
ones).
Licences:
2to3: PSF License v2
3to2: Apache Software License (from 3to2/setup.py)
python-modernize licence: BSD (from python-modernize/LICENSE)
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Examples:
>>> canonical_fix_name('fix_wrap_text_literals')
'libfuturize.fixes.fix_wrap_text_literals'
>>> canonical_fix_name('wrap_text_literals')
'libfuturize.fixes.fix_wrap_text_literals'
>>> canonical_fix_name('wrap_te')
ValueError("unknown fixer name")
>>> canonical_fix_name('wrap')
ValueError("ambiguous fixer name")
z.fix_Zfix_� Nc s g | ]}|j d j� ��r|�qS )zfix_{0})�endswith�format)�.0�f)�fix� �=/root/tmp/pip-build-gzoz1_uw/future/libfuturize/fixer_util.py�
<listcomp>( s z&canonical_fix_name.<locals>.<listcomp>� zOAmbiguous fixer name. Choose a fully qualified module name instead from these:
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Returns the indentation for this node
Iff a node is in a suite, then it has indentation.
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Implemented by finding the shortest indentation string
(technically, the "least" of all of the indentation strings, but
tabs and spaces mixed won't get this far, so those are synonymous.)
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r9 c C s� x | j D ]}|jtjkrdS qW x,t| j �D ]\}}|jtjkr,P q,W td��ttjt � t
tj t |�t
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Accepts a package (Name node), name to import it as (string), and
optional prefix and returns a node:
import <package> [as <as_name>]
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NameImport� s rF c c s | j tkst�| j}x2|j tjkrF|j}|j tjkr8P n|V |j}qW | j}|j tj ks^t�|j}x|dk r||V |j}qfW |j}|j t
kr�|}x |jdk r�|jV |j}q�W |j}|j}|dkr�dS xF|j t
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This seems to work
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An alternative to future_import() which might not work ...
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Parse a list of arguments into a dict
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d t tj | �� dS )a� Works like `does_tree_import` but adds an import statement at the
top if it was not imported (but below any __future__ imports) and below any
comments such as shebang lines).
Based on lib2to3.fixer_util.touch_import()
Calling this multiple times adds the imports in reverse order.
Also adds "standard_library.install_aliases()" after "from future import
standard_library". This should probably be factored into another function.
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zZIf this is a future import, return set of symbols that are imported,
else return None.r r r2 rZ � r Fzstrange import: %sN)r. r/ rL r: r6 � import_from�hasattrr2 r
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Comments are prefixes for Leaf nodes. Returns whether the given node has a
prefix that looks like a shebang line or an encoding line:
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#!/usr/bin/python3
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Comments are prefixes for Leaf nodes. Returns whether the given node has a
prefix that looks like an encoding line:
# coding: utf-8
# encoding: utf-8
# -*- coding: <encoding name> -*-
# vim: set fileencoding=<encoding name> :
)r� r� r� �ENCODING_REGEXr! )r3 r r r r\ � s
r\ c C sH t |�dkst�t |�dkr2|\}}|t� |g}n|}tt| �||d�S )z�
Example:
>>> wrap_in_fn_call("oldstr", (arg,))
oldstr(arg)
>>> wrap_in_fn_call("olddiv", (arg1, arg2))
olddiv(arg1, arg2)
>>> wrap_in_fn_call("olddiv", [arg1, comma, arg2, comma, arg3])
olddiv(arg1, arg2, arg3)
r rj )r! )r rH r r r )�fn_name�argsr! Zexpr1Zexpr2Znewargsr r r �wrap_in_fn_call� s r� )N)N)N)NN)N)N)2�__doc__Zlib2to3.fixer_utilr r r r r r r r Zlib2to3.pytreer
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