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Top Forums Shell Programming and Scripting Feed python with read line in shell Post 303033286 by Don Cragun on Tuesday 2nd of April 2019 10:20:10 PM
Old 04-02-2019
What previous process?

Did you try using:
Code:
python test.py < keywords

like I suggested in post #2? If so, did it work? If not, in what way did it fail?

If the above works and you have some other process that is creating the contents of the file named keywords, then piping the output of that command directly into python test.py is highly likely to work if that process writes the data that is stored into keywords to its standard output.

With very few exceptions, if the command sequence:
Code:
producer > temp_file
consumer < temp_file

works, then those two commands be replaced by:
Code:
producer | consumer

and get the same results. Or, if you need to keep the data that is being passed between producer and consumer, you can use:
Code:
producer | tee temp_file | consumer

and often still get faster results that running the two processes synchronously.
This User Gave Thanks to Don Cragun For This Post:
 

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DH_PYSUPPORT(1) 						  python-support						   DH_PYSUPPORT(1)

NAME
dh_pysupport - use the python-support framework to handle Python modules SYNOPSIS
dh_pysupport [debhelper options] [-V X.Y] [-X item [...]] [-n] [module dirs ...] DESCRIPTION
dh_pysupport is a debhelper program that will scan your package, detect public modules in /usr/lib/pythonX.Y/site-packages, and move them to the shared Python modules location. It will generate appropriate postinst/prerm scripts to byte-compile modules installed there for all available python versions. It will also look for private Python modules and will byte-compile them with the current Python version. You may have to list the directories containing private Python modules. If a file named debian/pyversions exists, it is used to determine the python versions with which the package can work. Appropriate dependencies on python-support, python and pythonX.Y are put in ${python:Depends}. The ${python:Versions} and ${python:Provides} optional substitution variables are made available as well. OPTIONS
module dirs If your package installs private python modules in non-standard directories, you can make dh_pysupport check those directories by passing their names on the command line. By default, it will check /usr/lib/$PACKAGE, /usr/share/$PACKAGE, /usr/lib/games/$PACKAGE and /usr/share/games/$PACKAGE -n, --noscripts Do not modify postinst/postrm scripts. -d This option is deprecated. -V X.Y Force private modules to be bytecompiled with the specific X.Y python version, regardless of the default python version on the system. -X item, --exclude=item Exclude files that contain "item" anywhere in their filename from being taken into account to generate the python dependency. It also excludes them from byte-compilation. You may use this option multiple times to build up a list of things to exclude. CONFORMS TO
Python policy as of 2006-08-10 SEE ALSO
debhelper(7) This program is a part of python-support but is made to work with debhelper. AUTHORS
Josselin Mouette <joss@debian.org>, Raphael Hertzog <hertzog@debian.org> 1.0.15 2012-06-30 DH_PYSUPPORT(1)
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