remove setup importing wfdb version

Author: cx1111

setup.py

@@ -15,7 +15,8 @@
     long_description = f.read()
 
 # Get the version number from the version.py file
-from wfdb.version import __version__
+with open('wfdb/version.py') as f:
+    __version__ = f.read().split()[-1].strip("'")
 
 # Get the requirements
 with open('requirements.txt') as f:

wfdb/version.py

@@ -1 +1 @@
-__version__ = '1.3.7'
+__version__ = '1.3.8'