document PY_COLORS and TOX_SKIP_ENV inside --help (#1009)

tox-dev · Sep 21, 2018 · f4e62b9 · f4e62b9
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diff --git a/changelog/163.doc.rst b/changelog/163.doc.rst
@@ -0,0 +1 @@
+document inside the ``--help`` how to disable colorized output via the ``PY_COLORS`` operating system environment variable - by :user:`gaborbernat`
diff --git a/src/tox/session.py b/src/tox/session.py
@@ -67,10 +67,12 @@ def show_help(config):
     tw.line()
     tw.line("Environment variables", bold=True)
     tw.line("TOXENV: comma separated list of environments (overridable by '-e')")
+    tw.line("TOX_SKIP_ENV: regular expression to filter down from running tox environments")
     tw.line(
         "TOX_TESTENV_PASSENV: space-separated list of extra environment variables to be "
         "passed into test command environments"
     )
+    tw.line("PY_COLORS: 0 disable colorized output, 1 enable (default)")
 
 
 def show_help_ini(config):
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		document inside the ``--help`` how to disable colorized output via the ``PY_COLORS`` operating system environment variable - by :user:`gaborbernat`