/home/lnzliplg/public_html/scripts.tar
pdeps.py 0000755 00000007540 15173270116 0006245 0 ustar 00 #! /usr/bin/python2.7
# pdeps
#
# Find dependencies between a bunch of Python modules.
#
# Usage:
# pdeps file1.py file2.py ...
#
# Output:
# Four tables separated by lines like '--- Closure ---':
# 1) Direct dependencies, listing which module imports which other modules
# 2) The inverse of (1)
# 3) Indirect dependencies, or the closure of the above
# 4) The inverse of (3)
#
# To do:
# - command line options to select output type
# - option to automatically scan the Python library for referenced modules
# - option to limit output to particular modules
import sys
import re
import os
# Main program
#
def main():
args = sys.argv[1:]
if not args:
print 'usage: pdeps file.py file.py ...'
return 2
#
table = {}
for arg in args:
process(arg, table)
#
print '--- Uses ---'
printresults(table)
#
print '--- Used By ---'
inv = inverse(table)
printresults(inv)
#
print '--- Closure of Uses ---'
reach = closure(table)
printresults(reach)
#
print '--- Closure of Used By ---'
invreach = inverse(reach)
printresults(invreach)
#
return 0
# Compiled regular expressions to search for import statements
#
m_import = re.compile('^[ \t]*from[ \t]+([^ \t]+)[ \t]+')
m_from = re.compile('^[ \t]*import[ \t]+([^#]+)')
# Collect data from one file
#
def process(filename, table):
fp = open(filename, 'r')
mod = os.path.basename(filename)
if mod[-3:] == '.py':
mod = mod[:-3]
table[mod] = list = []
while 1:
line = fp.readline()
if not line: break
while line[-1:] == '\\':
nextline = fp.readline()
if not nextline: break
line = line[:-1] + nextline
if m_import.match(line) >= 0:
(a, b), (a1, b1) = m_import.regs[:2]
elif m_from.match(line) >= 0:
(a, b), (a1, b1) = m_from.regs[:2]
else: continue
words = line[a1:b1].split(',')
# print '#', line, words
for word in words:
word = word.strip()
if word not in list:
list.append(word)
# Compute closure (this is in fact totally general)
#
def closure(table):
modules = table.keys()
#
# Initialize reach with a copy of table
#
reach = {}
for mod in modules:
reach[mod] = table[mod][:]
#
# Iterate until no more change
#
change = 1
while change:
change = 0
for mod in modules:
for mo in reach[mod]:
if mo in modules:
for m in reach[mo]:
if m not in reach[mod]:
reach[mod].append(m)
change = 1
#
return reach
# Invert a table (this is again totally general).
# All keys of the original table are made keys of the inverse,
# so there may be empty lists in the inverse.
#
def inverse(table):
inv = {}
for key in table.keys():
if not inv.has_key(key):
inv[key] = []
for item in table[key]:
store(inv, item, key)
return inv
# Store "item" in "dict" under "key".
# The dictionary maps keys to lists of items.
# If there is no list for the key yet, it is created.
#
def store(dict, key, item):
if dict.has_key(key):
dict[key].append(item)
else:
dict[key] = [item]
# Tabulate results neatly
#
def printresults(table):
modules = table.keys()
maxlen = 0
for mod in modules: maxlen = max(maxlen, len(mod))
modules.sort()
for mod in modules:
list = table[mod]
list.sort()
print mod.ljust(maxlen), ':',
if mod in list:
print '(*)',
for ref in list:
print ref,
print
# Call main and honor exit status
if __name__ == '__main__':
try:
sys.exit(main())
except KeyboardInterrupt:
sys.exit(1)
reindent.pyc 0000644 00000022635 15173270116 0007104 0 ustar 00 �
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� � YZ d � Z e d k r� e � n d S( sA reindent [-d][-r][-v] [ path ... ]
-d (--dryrun) Dry run. Analyze, but don't make any changes to, files.
-r (--recurse) Recurse. Search for all .py files in subdirectories too.
-n (--nobackup) No backup. Does not make a ".bak" file before reindenting.
-v (--verbose) Verbose. Print informative msgs; else no output.
-h (--help) Help. Print this usage information and exit.
Change Python (.py) files to use 4-space indents and no hard tab characters.
Also trim excess spaces and tabs from ends of lines, and remove empty lines
at the end of files. Also ensure the last line ends with a newline.
If no paths are given on the command line, reindent operates as a filter,
reading a single source file from standard input and writing the transformed
source to standard output. In this case, the -d, -r and -v flags are
ignored.
You can pass one or more file and/or directory paths. When a directory
path, all .py files within the directory will be examined, and, if the -r
option is given, likewise recursively for subdirectories.
If output is not to standard output, reindent overwrites files in place,
renaming the originals with a .bak extension. If it finds nothing to
change, the file is left alone. If reindent does change a file, the changed
file is a fixed-point for future runs (i.e., running reindent on the
resulting .py file won't change it again).
The hard part of reindenting is figuring out what to do with comment
lines. So long as the input files get a clean bill of health from
tabnanny.py, reindent should do a good job.
The backup file is a copy of the one that is being reindented. The ".bak"
file is generated with shutil.copy(), but some corner cases regarding
user/group and permissions could leave the backup file more readable than
you'd prefer. You can always use the --nobackup option to prevent this.
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