Merge pull request #1679 from jenshnielsen/useenvmarker

use env markers for version specific deps

Author: jenshnielsen

qcodes/utils/installation_info.py

@@ -80,6 +80,10 @@ def get_qcodes_requirements_versions() -> Dict[str, str]:
     req_modules = []
 
     for req_name in req_names:
+        # the requirement might have a pep 496
+        # env marker. Filter that out before
+        # checking the version
+        req_name = req_name.split(';')[0]
         if req_name in _VERSIONLESS_PACKAGES:
             pass
         elif req_name in _IMPORT_NAMES:

setup.py

@@ -31,7 +31,7 @@ def readme():
     'tabulate',
     'tqdm',
     'applicationinsights',
-    'dataclasses' # can be removed once we drop support for python 3.6
+    "dataclasses;python_version<'3.7'"  # can be removed once we drop support for python 3.6
 ]
 
 setup(name='qcodes',