"""
List compiler versions by looking up registry keys
"""
- version_pattern = re.compile('^...?.?\....?.?')
+ version_pattern = re.compile(r'^...?.?\....?.?')
try:
all_versions = Utils.winreg.OpenKey(Utils.winreg.HKEY_LOCAL_MACHINE, 'SOFTWARE\\Wow6432node\\Intel\\Compilers\\Fortran')
except OSError: