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make yaml a extra dependency #297

RonnyPfannschmidt opened this Issue Feb 15, 2015 · 5 comments


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RonnyPfannschmidt commented Feb 15, 2015

i'd love to use the core package, but i don't want the yaml dependency and i don't use the script


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ralsina commented Jun 11, 2015

Same here. We are thinking about moving to watchdog from pure inotify in Nikola and Doit but the YAML dependency is hard to take.


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Kwpolska commented Jun 12, 2015

I’d love to send a pull request, but I can’t get buildout to work. Here’s my patch for this feature instead:

diff --git a/ b/
index ba7283c..8c27538 100644
--- a/
+++ b/
@@ -81,7 +81,7 @@ tests_require=['pytest', 'pytest-cov', 'pytest-timeout >=0.3']
 if sys.version_info < (2, 7, 0):

-install_requires = ['PyYAML >=3.10', 'argh >=0.24.1', 'pathtools >=0.1.1']
+install_requires = ['argh >=0.24.1', 'pathtools >=0.1.1']
 if sys.version_info < (2, 7, 0):
     # argparse is merged into Python 2.7 in the Python 2x series
     # and Python 3.2 in the Python 3x series.
@@ -92,6 +92,8 @@ if sys.version_info < (2, 7, 0):
         # which works.
         install_requires.append('select_backport >=0.2')

+cmd_requires = ['PyYAML >=3.10']
 with open('README.rst') as f:
     readme =

@@ -142,6 +144,7 @@ setup(name="watchdog",
+      extras_require={'cmd': cmd_requires},
           'build_ext': build_ext,

core-only usage:

$ pip install watchdog

cmd usage:

$ pip install "watchdog[cmd]"

Maintainers: please review and apply if possible, we’d all appreciate it 😃


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RonnyPfannschmidt commented Jun 13, 2015

The extra also needs to be added to script entrypoints


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fluffy-critter commented Jan 4, 2019

Nearly four years later, and a dependency on watchdog is causing all of my projects to get GitHub security audit alerts for a dependency on a library that's not even used by consumers of the library. Any chance this could get looked at again?



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BoboTiG commented Jan 4, 2019

Of course, will open a PR for discussion.

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