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Top Forums Shell Programming and Scripting Feed python with read line in shell Post 303033276 by Don Cragun on Tuesday 2nd of April 2019 08:06:12 PM
Old 04-02-2019
I have no idea what you are trying to do.

You do three things every time you read a line from a file:
  1. run a python script that reads no input,
  2. sleep for two seconds, and
  3. echo the contents of a variable that has never been defined to the standard output of your script.
In a more normal sequence of operations, one might expect to see something more like:
Code:
python test.py < keywords

or, if the data in keywords needs to be massaged in some way before being passed on to python:
Code:
while read -r line
do	# do whatever needs to be done to $line before passing it on to python
	... ... ...
	# pass on the modified line to python
	printf '%s\n' "$line"
done < keywords | python test.py

This User Gave Thanks to Don Cragun For This Post:
 

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UPDATE-PYTHON-MODULES(8)				      System Manager's Manual					  UPDATE-PYTHON-MODULES(8)

NAME
update-python-modules - byte-compile python modules SYNOPSIS
update-python-modules [options] [package.public [...]] DESCRIPTION
The update-python-modules command is part of the python-support bundle. update-python-modules is responsible for the byte-compilation of python modules. When used in byte-compilation mode, it will byte-compile modules references in the files given on the command line. When used in installation mode, it will byte-compile them once for each installed python version, and will make them available for all of them. At each invocation, with or without arguments, update-python-modules will check for installed python versions, and will build or remove modules according to new or removed versions since the last time it was run. ARGUMENTS
Arguments must be files or directories located in the /usr/share/python-support directory. Depending on their extension, they are treated differently. package.public A file listing public modules to install for each version. These modules must lie in /usr/share/pyshared or /usr/lib/pyshared. package.private A file listing private modules to byte-compile for one Python version. package/ A legacy directory hierarchy of public modules. The C extensions and portions that change with the Python version are to be found in /usr/lib/python-support/pythonX.Y/package/. package.dirs A legacy file listing directories where to find private modules. OPTIONS
-h, --help Show summary of options. -v, --verbose Detail all actions while they are performed. -b, --bytecompile Only accept to work on private modules. When given this option, update-python-modules will fail if passed references to public mod- ules. -i, --install Only accept to work on public modules. When given this option, update-python-modules will fail if passed references to public mod- ules. -c, --clean Clean modules instead of installing them. -a, --rebuild-all Rebuild all private modules. This is necessary when the default python version was changed, for example. -f, --force-rebuild-all Clean all modules (public and private), and rebuild them. FILES
/usr/lib/pymodules/pythonX.Y/ These directories contain the byte-compiled modules for version pythonX.Y. SEE ALSO
/usr/share/doc/python-support/README.gz AUTHOR
Josselin Mouette <joss@debian.org>. 18 Feb 2009 UPDATE-PYTHON-MODULES(8)
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