Merge remote-tracking branch 'origin/develop' into develop

setup.py

@@ -4,6 +4,22 @@
 import sys
 import re
 
+PKG = "pytessel"
+VERSIONFILE = os.path.join(os.path.dirname(__file__), PKG, "_version.py")
+verstr = "unknown"
+try:
+    verstrline = open(VERSIONFILE, "rt").read()
+except EnvironmentError:
+    pass # Okay, there is no version file.
+else:
+    VSRE = r"^__version__ = ['\"]([^'\"]*)['\"]"
+    mo = re.search(VSRE, verstrline, re.M)
+    if mo:
+        verstr = mo.group(1)
+    else:
+        print(r"Unable to find version in %s" % (VERSIONFILE,))
+        raise RuntimeError(r"If %s.py exists, it is required to be well-formed" % (VERSIONFILE,))
+
 PKG = "pytessel"
 VERSIONFILE = os.path.join(os.path.dirname(__file__), PKG, "_version.py")
 verstr = "unknown"