buildPythonPackage: be able to disable package conflict check

1 files changed, 1 insertions, 0 deletions

diff --git a/doc/languages-frameworks/python.md b/doc/languages-frameworks/python.md
index 50acc7f28f78..809e51460848 100644
--- a/doc/languages-frameworks/python.md
+++ b/doc/languages-frameworks/python.md
@@ -532,6 +532,7 @@ All parameters from `mkDerivation` function are still supported.
 * `makeWrapperArgs`: A list of strings. Arguments to be passed to `makeWrapper`, which wraps generated binaries. By default, the arguments to `makeWrapper` set `PATH` and `PYTHONPATH` environment variables before calling the binary. Additional arguments here can allow a developer to set environment variables which will be available when the binary is run. For example, `makeWrapperArgs = ["--set FOO BAR" "--set BAZ QUX"]`.
 * `installFlags`: A list of strings. Arguments to be passed to `pip install`. To pass options to `python setup.py install`, use `--install-option`. E.g., `installFlags=["--install-option='--cpp_implementation'"].
 * `format`: Format of the source. Options are `setup` for when the source has a `setup.py` and `setuptools` is used to build a wheel, and `wheel` in case the source is already a binary wheel. The default value is `setup`.
+* `catchConflicts` If `true`, abort package build if a package name appears more than once in dependency tree. Default is `true`.
 
 #### `buildPythonApplication` function