ci: Drop tox-venv

Its README says it is mostly obsolete due to improvements in
virtualenv. Using it appears to cause problems related to
https://github.com/pypa/setuptools/issues/1934 because virtualenv
installs the wheel package by default but venv doesn't.

diff --git a/.travis.yml b/.travis.yml
index 474bc90e474d3273ba9878df60a02294addbce16..847c8cfe04f563ef53003ce9548669f4cf82d8e2 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,7 +39,7 @@ jobs:
       env: TOX_ENV=lint
 
 install:
-    - travis_retry pip install tox tox-venv
+    - travis_retry pip install tox
     - python -VV
     - curl-config --version; pip freeze
 

diff --git a/tox.ini b/tox.ini
index ca05722c33a1b62e92d6e59df3cab0fa518d4e15..ac794be4d2225ed3f6af8910de137c0d7996eb89 100644 (file)
--- a/tox.ini
+++ b/tox.ini
@@ -11,9 +11,6 @@
 # 'port install curl +universal' to get both 32- and 64-bit versions of
 # libcurl.
 [tox]
-# When tox is run from a venv (instead of a virtualenv), it can get confused
-# unless tox-venv is also installed.
-requires = tox-venv
 envlist =
         # Basic configurations: Run the tests for each python version.
         py35-full,py36-full,py37-full,py38-full,pypy3-full