31 lines
976 B
Python
31 lines
976 B
Python
import os
|
|
|
|
def find_command(cmd, path=None, pathext=None):
|
|
if path is None:
|
|
path = os.environ.get('PATH', []).split(os.pathsep)
|
|
if isinstance(path, basestring):
|
|
path = [path]
|
|
# check if there are funny path extensions for executables, e.g. Windows
|
|
if pathext is None:
|
|
pathext = os.environ.get('PATHEXT', '.COM;.EXE;.BAT;.CMD').split(os.pathsep)
|
|
# don't use extensions if the command ends with one of them
|
|
for ext in pathext:
|
|
if cmd.endswith(ext):
|
|
pathext = ['']
|
|
break
|
|
# check if we find the command on PATH
|
|
for p in path:
|
|
f = os.path.join(p, cmd)
|
|
if os.path.isfile(f):
|
|
return f
|
|
for ext in pathext:
|
|
fext = f + ext
|
|
if os.path.isfile(fext):
|
|
return fext
|
|
return None
|
|
|
|
# checks if it can find xgettext on the PATH and
|
|
# imports the extraction tests if yes
|
|
if find_command('xgettext'):
|
|
from extraction import *
|