automatic test build fix

tox.ini

@@ -34,8 +34,8 @@ conda_channels :
     conda-forge
     anaconda
 deps =
-    -r{toxinidir}/requirements_dev.txt
-    -r{toxinidir}/requirements_continuous_integration.txt
+    -r{toxinidir}/requirements_dev.txt --ignore-installed certifi
+    -r{toxinidir}/requirements_continuous_integration.txt --ignore-installed certifi
 changedir = {toxinidir}
 commands =
     make docs
@@ -54,8 +54,8 @@ conda_channels :
     conda-forge
     anaconda
 deps =
-    -r{toxinidir}/requirements_dev.txt
-    -r{toxinidir}/requirements_continuous_integration.txt
+    -r{toxinidir}/requirements_dev.txt --ignore-installed certifi
+    -r{toxinidir}/requirements_continuous_integration.txt --ignore-installed certifi
 changedir = {toxinidir}
 commands =
     python make_coverage.py
@@ -72,8 +72,8 @@ passenv =
     HTTPS_PROXY
 whitelist_externals = sh
 deps =
-    -r{toxinidir}/requirements_dev.txt
-    -r{toxinidir}/requirements_continuous_integration.txt
+    -r{toxinidir}/requirements_dev.txt --ignore-installed certifi
+    -r{toxinidir}/requirements_continuous_integration.txt --ignore-installed certifi
 changedir = {toxinidir}
 commands =
     python --version
@@ -95,8 +95,8 @@ conda_channels :
     conda-forge
     anaconda
 deps =
-    -r{toxinidir}/requirements_dev.txt
-    -r{toxinidir}/requirements_continuous_integration.txt
+    -r{toxinidir}/requirements_dev.txt --ignore-installed certifi
+    -r{toxinidir}/requirements_continuous_integration.txt --ignore-installed certifi
 changedir = {toxinidir}
 commands =
     python {toxinidir}/benchmarks/profile_all_examples.py
@@ -118,7 +118,7 @@ conda_channels :
     conda-forge
     anaconda
 deps =
-    -r{toxinidir}/requirements_dev.txt
+    -r{toxinidir}/requirements_dev.txt --ignore-installed certifi
 ; run tests from subfolder to ensure that resources are accessed via resources and not via relative paths
 changedir = {envtmpdir}/c236d3c240d61a0969d4cb59e2180ce5
 commands =
@@ -140,8 +140,8 @@ whitelist_externals = sh
             bash
             pwd
 deps =
-    -r{toxinidir}/requirements_dev.txt
-    -r{toxinidir}/requirements_continuous_integration.txt
+    -r{toxinidir}/requirements_dev.txt --ignore-installed certifi
+    -r{toxinidir}/requirements_continuous_integration.txt --ignore-installed certifi
 conda_deps =
     tk
 conda_channels :
@@ -170,8 +170,8 @@ passenv =
     HTTPS_PROXY
 whitelist_externals = sh
 deps =
-    -r{toxinidir}/requirements_dev.txt
-    -r{toxinidir}/requirements_continuous_integration.txt
+    -r{toxinidir}/requirements_dev.txt --ignore-installed certifi
+    -r{toxinidir}/requirements_continuous_integration.txt --ignore-installed certifi
 conda_deps =
     tk
 conda_channels :
@@ -200,7 +200,7 @@ conda_channels :
     conda-forge
     anaconda
 deps =
-    -r{toxinidir}/requirements_dev.txt
+    -r{toxinidir}/requirements_dev.txt --ignore-installed certifi
 ; run tests from subfolder to ensure that resources are accessed via resources and not via relative paths
 changedir = {envtmpdir}/fefed3ba12bf1ed81dbcc20fb52706ea
 commands =