In This Package:

DybPython::unixtools Namespace Reference

Functions
def	FindFile
def	which
def	where
Variables
string	__version__ = '1.0.0'
string	__author__ = 'Wim Lavrijsen (WLavrijsen@lbl.gov)'
list	__all__ = [ 'FindFile', 'which', 'where' ]

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Function Documentation

def DybPython::unixtools::FindFile	(		filename,
			pathlist,
			access
	)

Find <filename> with rights <access> through <pathlist>.

Definition at line 17 of file unixtools.py.

00017                                           :
00018    """Find <filename> with rights <access> through <pathlist>."""
00019 
00020  # special case for those filenames that already contain a path
00021    if os.path.dirname( filename ):
00022       if os.access( filename, access ):
00023          return filename
00024 
00025  # test the file name in all possible paths until first found
00026    for path in pathlist:
00027       f = os.path.join( path, filename )
00028       if os.access( f, access ):
00029          return f
00030 
00031  # no such accessible file avalailable
00032    return None
00033 
00034 
### UNIX-style which ------------------------------------------------------------

def DybPython::unixtools::which	(		filename,
			env = os.environ
	)

Search for <filename> through the PATH in environment <env>. Only executable
files will be returned.

Definition at line 36 of file unixtools.py.

00036                                        :
00037    """Search for <filename> through the PATH in environment <env>. Only executable
00038 files will be returned."""
00039 
00040  # retrieve the value of the PATH environment variable
00041    try:
00042       p = env[ 'PATH' ]
00043    except KeyError:
00044       p = os.defpath
00045 
00046    return FindFile( filename, string.split( p, os.pathsep ), os.X_OK )
00047 
00048 
### "which" for python files ----------------------------------------------------

def DybPython::unixtools::where	(		filename,
			prepath = []
	)

Search for <filename> in the python path and the given <prepath>.

Definition at line 50 of file unixtools.py.

00050                                    :
00051    """Search for <filename> in the python path and the given <prepath>."""
00052 
00053  # look in the given path and in the python path
00054    pathlist = prepath + sys.path
00055 
00056    for ext in [ '', '.py', '.pyc', '.so' ]:
00057       result = FindFile( filename + ext, pathlist, os.R_OK )
00058       if result:
00059          break
00060 
00061    return result
   return result

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Variable Documentation

string DybPython::unixtools::__version__ = '1.0.0' [static]

Definition at line 10 of file unixtools.py.

string DybPython::unixtools::__author__ = 'Wim Lavrijsen (WLavrijsen@lbl.gov)' [static]

Definition at line 11 of file unixtools.py.

list DybPython::unixtools::__all__ = [ 'FindFile', 'which', 'where' ] [static]

Definition at line 13 of file unixtools.py.

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