repython is a utility to run a command and then restart it based
on filesystem changes. It's useful for quickly testing changes to a
running program. For instance, Django uses a similar but more
sophisticated method to reload its source code when it detects
repython uses the pyinotify library to make monitoring for changes
efficient compared to just polling the filesystem.
You can install the repython module using:
$ python setup.py install
repython is also available from the Cheeseshop:
$ pip install repython
Or using setuptools:
$ easy_install repython
$ python -m repython "python example.py"
This would open the command in a subprocess and recursively monitor
the current working directory for any changed files matching the *.py
filename pattern (default behavior).
repython is not limited to running Python programs, so a command like
this should work as well:
$ python -m repython "ruby example.rb" -p "*.rb" "*.txt"
The `-p` or `--pattern` arguments determine which file changes
trigger restarting the run command.
The `-d` or `--directory` arguments allow monitoring other directories
than the current working directory. It can be used like this:
$ python -m repython "python example.py" -d . ~/example
This command would make repython recursively monitor (i.e., including
subdirectories) both the working directory and the
The `-v` or `--verbose` argument can be used to get more detailed
output from repython, and the `-q` or `--quiet` argument can be used
to suppress repython output.
For more details please see:
$ python -m repython --help
[Python issue #9338](http://bugs.python.org/issue9338) causes the
argument order to be wrong in the generated usage instructions
(shown when using the `--help` argument). The `command` argument should
come before the optional arguments for the tool to work.
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.