fix paths

tox.ini

@@ -44,9 +44,9 @@ setenv =
     Plone52: version_file=test_plone52.cfg
 
 deps =
-    -rrequirements.txt
-    Plone52: -cconstraints_plone52.txt
-    # Plone60: -cconstraints_plone60.txt
+    -requirements.txt
+    Plone52: -constraints_plone52.txt
+    # Plone60: -constraints_plone60.txt
     coverage
 
 
@@ -57,7 +57,7 @@ basepython = python3.7
 
 deps =
     coverage
-    -cconstraints_plone52.txt
+    -constraints_plone52.txt
 
 setenv =
     COVERAGE_FILE=.coverage
@@ -74,7 +74,7 @@ commands =
 skip_install = true
 
 deps =
-    -cconstraints.txt
+    -constraints.txt
     isort
     flake8
     # helper to generate HTML reports:
@@ -101,10 +101,10 @@ deps =
 
 commands =
     mkdir -p {toxinidir}/reports/flake8
-    - flake8 --format=html --htmldir={toxinidir}/reports/flake8 --doctests {toxinidir}/src {toxinidir}/setup.py
-    flake8 --doctests {toxinidir}/src {toxinidir}/setup.py
-    isort --check-only {toxinidir}/src {toxinidir}/setup.py
-    # black --check --diff -v {toxinidir}/src {toxinidir}/setup.py
+    - flake8 --format=html --htmldir={toxinidir}/reports/flake8 --doctests {toxinidir}/ {toxinidir}/setup.py
+    flake8 --doctests {toxinidir}/collective {toxinidir}/setup.py
+    isort --check-only {toxinidir}/collective {toxinidir}/setup.py
+    # black --check --diff -v {toxinidir}/ {toxinidir}/setup.py
 
 whitelist_externals =
     mkdir
@@ -114,33 +114,33 @@ whitelist_externals =
 skip_install = true
 
 deps =
-    -cconstraints.txt
+    -constraints.txt
     isort
 
 commands =
-    isort {toxinidir}/src {toxinidir}/setup.py
+    isort {toxinidir}/collective {toxinidir}/setup.py
 
 
 [testenv:black-check]
 basepython = python3.7
 skip_install = True
 deps =
-    -cconstraints.txt
+    -constraints.txt
     black
 
 commands =
-    black --check --diff -v src setup.py
+    black --check --diff -v setup.py
 
 
 [testenv:black-enforce]
 basepython = python3.7
 skip_install = True
 deps =
-    -cconstraints.txt
+    -constraints.txt
     black
 
 commands =
-    black -v src setup.py
+    black -v collective setup.py
 
 
 [testenv:py37-lint]