abmudd / phylogeny Goto Github PK

bredeson|21:57:42|workdir> cat which.py 
import os
import sys

def which(pgm):
    path=os.getenv('PATH')
    for p in path.split(os.path.pathsep):
        p=os.path.join(p,pgm)
        if os.path.exists(p) and os.access(p,os.X_OK):
            return p


print(which(sys.argv[1]))

bredeson|22:23:25|workdir> python ./which.py ../Phylogeny/bin/allgenesingb.py
None
bredeson|22:23:37|workdir> python ./which.py allgenesingb.py
/path/to/Phylogeny/bin/allgenesingb.py
bredeson|22:23:45|workdir> python ./which.py /path/to/Phylogeny/bin/allgenesingb.py
/path/to/Phylogeny/bin/allgenesingb.py