tweak workaround for #1644

Work around buggy pip detection code for "pip.exe install/update pip ...".

1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 8b34c235..5d439cb3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -14,7 +14,7 @@ envlist=python
 pip = python {toxinidir}/tools/tox_pip.py
 
 [testenv]
-deps=-rtests/requirements.txt
+deps=-r{toxinidir}/tests/requirements.txt
 install_command = {[helpers]pip} install {opts} {packages}
 list_dependencies_command = {[helpers]pip} freeze --all
 setenv=COVERAGE_FILE={toxworkdir}/.coverage.{envname}