Add pylint configuration file (pylintrc) and do_pylint.sh script which runs pylint checkers on Melange code using pylintrc file as config. do_pylint.sh as default shows additional information like reports, TODOs, code similarities and unused imports, but you can run it in silent mode (--silent) which disables all of that. The only problem with unused imports in pylint right now is that it doesn't work in the situation described in last example at http://code.google.com/p/soc/wiki/PythonStyleGuide#Packages, so sometimes we get unused import soc when we actually shouldn't. However this can be fixed by writing pylint plugins (our own checkers) in future.
Patch by: Pawel Solyga
Review by: to-be-reviewed
"""
This utility module is for obtaining information about the PostGIS
installation.
See PostGIS docs at Ch. 6.2.1 for more information on these functions.
"""
import re
def _get_postgis_func(func):
"Helper routine for calling PostGIS functions and returning their result."
from django.db import connection
cursor = connection.cursor()
cursor.execute('SELECT %s()' % func)
row = cursor.fetchone()
cursor.close()
return row[0]
### PostGIS management functions ###
def postgis_geos_version():
"Returns the version of the GEOS library used with PostGIS."
return _get_postgis_func('postgis_geos_version')
def postgis_lib_version():
"Returns the version number of the PostGIS library used with PostgreSQL."
return _get_postgis_func('postgis_lib_version')
def postgis_proj_version():
"Returns the version of the PROJ.4 library used with PostGIS."
return _get_postgis_func('postgis_proj_version')
def postgis_version():
"Returns PostGIS version number and compile-time options."
return _get_postgis_func('postgis_version')
def postgis_full_version():
"Returns PostGIS version number and compile-time options."
return _get_postgis_func('postgis_full_version')
### Routines for parsing output of management functions. ###
version_regex = re.compile('^(?P<major>\d)\.(?P<minor1>\d)\.(?P<minor2>\d+)')
def postgis_version_tuple():
"Returns the PostGIS version as a tuple."
# Getting the PostGIS version
version = postgis_lib_version()
m = version_regex.match(version)
if m:
major = int(m.group('major'))
minor1 = int(m.group('minor1'))
minor2 = int(m.group('minor2'))
else:
raise Exception('Could not parse PostGIS version string: %s' % version)
return (version, major, minor1, minor2)