solve the dep issue with enum34 in Py2, and make the cicd happy again

README.md

@@ -49,21 +49,23 @@ Dependencies
 Currently none. Only the Python builtins and few internal modules of Python 
 (e.g. os, system, re, struct, datetime) are required for most of the features. 
 The json internal module is required for supporting the JSON API.
+If you want to run pycrate in Python2 (which is bad !), you will however need to
+install the [enum34](https://pypi.org/project/enum34/) package.
 
 The _pycrate\_ether/SCTP_ module can optionally use the external 
 [crc32c](https://pypi.org/project/crc32c/) module from ICRAR.
 
 The _pycrate\_mobile/TS24301\_EMM_ and _pycrate\_mobile/TS24501\_FGMM_ modules use 
 [CryptoMobile](https://github.com/p1sec/CryptoMobile) as optional dependency to 
-cipher / decipher LTE and 5G NAS messages.
+encrypt and decrypt LTE and 5G NAS messages.
+
+The _pycrate\_corenet_ part requires also [pysctp](https://pypi.org/project/pysctp/) 
+and [CryptoMobile](https://github.com/p1sec/CryptoMobile) to run.
 
 The _pycrate\_diameter/parse\_iana\_diameter\_xml.py_ file uses 
 [lxml](https://pypi.org/project/lxml/) to translate xml files from IANA to Python 
 dictionnaries ; this is however not required for standard runtime.
 
-The _pycrate\_corenet_ part requires [pysctp](https://pypi.org/project/pysctp/) 
-and [CryptoMobile](https://github.com/p1sec/CryptoMobile) to run.
-
 
 Automatic installation
 ----------------------

setup.cfg

@@ -10,6 +10,8 @@ platform =
     linux: linux
     macos: darwin
     windows: win32
+deps =
+    py27: enum34
 commands = python -m unittest --verbose test.test_pycrate
 
 [gh-actions]

setup.py

@@ -1,12 +1,21 @@
 # -*- coding: UTF−8 -*-
 
 import os
+import sys
 from setuptools import setup, find_packages
 
 # Pycrate Version
 VERSION = "0.4.1"
 
 
+# get dependencies according to the Python version
+if sys.version_info[0] == 2:
+    # Python2 requires enum34
+    install_reqs = ['enum34']
+else:
+    install_reqs = []
+
+
 # get long description from the README.md
 with open(os.path.join(os.path.dirname(__file__), "README.md")) as fd:
     long_description = fd.read()
@@ -43,8 +52,8 @@ setup(
         "tools/pycrate_map_op_info.py",
         ],
     
-    # no mandatory dependency
-    install_requires=[],
+    # potential dependencies
+    install_requires=install_reqs,
     
     # optional dependencies
     extras_require={