Replace distutils.version with packaging.version

fixes #1134

Author: apdavison

doc/source/conf.py

@@ -14,14 +14,14 @@
 import os
 import sys
 
-from distutils.version import LooseVersion
+from packaging.version import Version
 
 with open("../../neo/version.py") as fp:
     d = {}
     exec(fp.read(), d)
     neo_release = d['version']
 
-neo_version = '.'.join(str(e) for e in LooseVersion(neo_release).version[:2])
+neo_version = '.'.join((str(e) for e in Version(neo_release).release[:2]))
 
 
 AUTHORS = 'Neo authors and contributors <neuralensemble@googlegroups.com>'

neo/io/neomatlabio.py

@@ -13,21 +13,21 @@
 """
 
 from datetime import datetime
-from distutils import version
 import re
 
 import numpy as np
 import quantities as pq
 
 # check scipy
 try:
+    from packaging.version import Version
     import scipy.io
     import scipy.version
 except ImportError as err:
     HAVE_SCIPY = False
     SCIPY_ERR = err
 else:
-    if version.LooseVersion(scipy.version.version) < '0.12.0':
+    if Version(scipy.version.version) < Version('0.12.0'):
         HAVE_SCIPY = False
         SCIPY_ERR = ImportError("your scipy version is too old to support "
                                 + "MatlabIO, you need at least 0.12.0. "

neo/io/nixio.py

@@ -26,7 +26,7 @@
 import itertools
 from uuid import uuid4
 import warnings
-from distutils.version import LooseVersion as Version
+from packaging.version import Version
 from itertools import chain
 
 import quantities as pq

neo/rawio/intanrawio.py

@@ -22,7 +22,7 @@
 
 import numpy as np
 from collections import OrderedDict
-from distutils.version import LooseVersion as V
+from packaging.version import Version as V
 
 
 class IntanRawIO(BaseRawIO):

neo/rawio/neuralynxrawio/nlxheader.py

@@ -1,5 +1,5 @@
 import datetime
-import distutils.version
+from packaging.version import Version
 import os
 import re
 from collections import OrderedDict
@@ -189,7 +189,7 @@ def __init__(self, filename):
             self['ApplicationName'] = 'Neuraview'
             app_version = '2'
 
-        self['ApplicationVersion'] = distutils.version.LooseVersion(app_version)
+        self['ApplicationVersion'] = Version(app_version)
 
         # convert bit_to_microvolt
         if 'bit_to_microVolt' in self:
@@ -215,22 +215,22 @@ def __init__(self, filename):
         an = self['ApplicationName']
         if an == 'Cheetah':
             av = self['ApplicationVersion']
-            if av <= '2':  # version 1 uses same as older versions
+            if av <= Version('2'):  # version 1 uses same as older versions
                 hpd = NlxHeader.header_pattern_dicts['bv5.6.4']
-            elif av < '5':
+            elif av < Version('5'):
                 hpd = NlxHeader.header_pattern_dicts['bv5']
-            elif av <= '5.4.0':
+            elif av <= Version('5.4.0'):
                 hpd = NlxHeader.header_pattern_dicts['v5.4.0']
-            elif av <= '5.6.4':
+            elif av <= Version('5.6.4'):
                 hpd = NlxHeader.header_pattern_dicts['bv5.6.4']
             else:
                 hpd = NlxHeader.header_pattern_dicts['def']
         elif an == 'BML':
             hpd = NlxHeader.header_pattern_dicts['bml']
-            av = "2"
+            av = Version("2")
         elif an == 'Neuraview':
             hpd = NlxHeader.header_pattern_dicts['neuraview2']
-            av = "2"
+            av = Version("2")
         else:
             an = "Unknown"
             av = "NA"

neo/test/iotest/test_blackrockio.py

@@ -18,14 +18,14 @@
 
 # check scipy
 try:
-    from distutils import version
+    from packaging.version import Version
     import scipy.io
     import scipy.version
 except ImportError as err:
     HAVE_SCIPY = False
     SCIPY_ERR = err
 else:
-    if version.LooseVersion(scipy.version.version) < '0.8':
+    if Version(scipy.version.version) < Version('0.8'):
         HAVE_SCIPY = False
         SCIPY_ERR = ImportError("your scipy version is too old to support " +
                                 "MatlabIO, you need at least 0.8. " +

requirements.txt

@@ -1,2 +1,3 @@
+packaging
 numpy>=1.16.1
 quantities>=0.12.1

setup.py

@@ -4,7 +4,8 @@
 import os
 
 long_description = open("README.rst").read()
-install_requires = ['numpy>=1.16.1',
+install_requires = ['packaging',
+                    'numpy>=1.16.1',
                     'quantities>=0.12.1']
 extras_require = {
     'igorproio': ['igor'],