hiral wrote:
Hi,
I want to display help message of python script and then display help
message from the binary file (which also supports -h option):
Assumptions:
1) 'mybinary' - is linux executable file which supports '-h' and on '-
h' option it displays the help message
2) myscript.py - when passing '-h' option want to call 'mybinary -h'
and display help messages of both script and binary.
Code:
====
from optparse import OptionParser
[...]
parser = OptionParser()
parser.add_option("-e", "--execute", dest="file",
help="Execute binary", metavar="FILE")
(options, args) = parser.parse_args()
if options.file:
subprocess.call(options.file)
Requirement:
$ python myscript.py -h
<currently it prints the help message with '-e' and '-h' help message>
<becides I want to display help message of 'mybinary'>
Thank you in advance.
-Hiral
Hi,
Try something like
def myHelp(option, opt, value, parser):
parser.print_help()
if hasattr(parser.values, 'file') and parser.values.file:
proc = subprocess.Popen([parser.values.file, '-h'],
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
print proc.stdout.read()
print proc.stderr.read()
parser.remove_option('-h')
parser.add_option("-h", "--help",
help="display the help message", action='callback',
callback = myHelp)
Jean-Michel
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