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Main program for 2to3.
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A refactoring tool that can avoid overwriting its input files.
Prints output to stdout.
Output files can optionally be written to a different directory and or
have an extra file suffix appended to their name for use in situations
where you do not want to replace the input files.
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Args:
fixers: A list of fixers to import.
options: A dict with RefactoringTool configuration.
explicit: A list of fixers to run even if they are explicit.
nobackups: If true no backup '.bak' files will be created for those
files that are being refactored.
show_diffs: Should diffs of the refactoring be printed to stdout?
input_base_dir: The base directory for all input files. This class
will strip this path prefix off of filenames before substituting
it with output_dir. Only meaningful if output_dir is supplied.
All files processed by refactor() must start with this path.
output_dir: If supplied, all converted files will be written into
this directory tree instead of input_base_dir.
append_suffix: If supplied, all files output by this tool will have
this appended to their filename. Useful for changing .py to
.py3 for example by passing append_suffix='3'.
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rx| j/ d k sgt1 ‚ t j dL IJd SX| j2 ƒ n t3 t4 | j, ƒ ƒ S(M sþ Main program.
Args:
fixer_pkg: the name of a package where the fixers are located.
args: optional; a list of command line arguments. If omitted,
sys.argv[1:] is used.
Returns a suggested exit status (0, 1, 2).
t usages 2to3 [options] file|dir ...s -ds --doctests_onlyt actiont
store_truet helps Fix up doctests onlys -fs --fixR t defaults1 Each FIX specifies a transformation; default: alls -js --processest storei t typet ints Run 2to3 concurrentlys -xs --nofixs' Prevent a transformation from being runs -ls --list-fixess List available transformationss -ps --print-functions0 Modify the grammar so that print() is a functions -vs --verboses More verbose loggings
--no-diffss# Don't show diffs of the refactorings -ws --writes Write back modified filess -ns --nobackupss& Don't write backups for modified filess -os --output-dirt strR sX Put output files in this directory instead of overwriting the input files. Requires -n.s -Ws --write-unchanged-filessY Also write files even if no changes were required (useful with --output-dir); implies -w.s --add-suffixsu Append this string to all output filenames. Requires -n if non-empty. ex: --add-suffix='3' will generate .py3 files.t write_unchanged_filess& --write-unchanged-files/-W implies -w.s% Can't use --output-dir/-o without -n.s" Can't use --add-suffix without -n.s@ not writing files and not printing diffs; that's not very usefuls Can't use -n without -ws2 Available transformations for the -f/--fix option:i s1 At least one file or directory argument required.s Use --help to show usage.i t -s Can't write to stdin.t print_functiont formats %(name)s: %(message)st levels lib2to3.mainc 3€ s | ] } ˆ d | Vq d S( s .fix_N( ( t .0t fix( t fixer_pkg( s$ /usr/lib64/python2.7/lib2to3/main.pys <genexpr>Þ s t alls .fix_s7 Output in %r will mirror the input directory %r layout.R R R s+ Sorry, -j isn't supported on this platform.(5 t optparset OptionParsert
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