I'm having a similar problem to that described in ".cgi problem with web server", although I reviewed and tested the previously suggested solutions without success.
I'm running the same program on Mac OS X 10.5.8, Apache 2.2.13, using Python 2.6.4. I can successfully run the code in the python shell and the terminal command-line, but I get <type 'exceptions.ImportError'>: No module named MySQLdb when I try to run it at "http://localhost/cgi-bin/test.cgi". It successfully runs if I comment out import MySQLdb.
#!/usr/bin/env python
import cgitb
cgitb.enable()
import MySQLdb
print "Content-Type: text/html"
print
print "<html><head><title>Books</title></head>"
print "<body>"
print "<h1>Books</h1>"
print "<ul>"
connection = MySQLdb.connect(user='me', passwd='letmein', db='my_db')
cursor = connection.cursor()
cursor.execute("SELECT name FROM books ORDER BY pub_date DESC LIMIT 10")
for row in cursor.fetchall():
print "<li>%s</li>" % row[0]
print "</ul>"
print "</body></html>"
connection.close()
[edit] Based on the first answer:
If I modify test.cgi as specified and run it from the terminal command-line, the directory of MySQLdb is shown in sys.path. However, when I run it via the web server, I get the same error. If I comment out import MySQLdb in test.cgi with the new for-loop, the page fails to open.
How do I set Apache's PYTHONPATH? At the python shell, I tried:
import MySQLdb
import os
print os.path.dirname(MySQLdb.__file__)
Then, based on other posts, I tried to add the resultant path in the original test.cgi:
import sys
sys.path.append('/Library/Frameworks/Python.framework/Versions/6.0.0/lib/python2.6/site-packages/MySQL_python-1.2.3c1-py2.6-macosx-10.5-i386.egg/')
but this produced the same error.
[edit]
Unfortunately, neither solution worked. Adding the path to sys.path gave me the same error as before. Hard-coding the path to the python binary #!/Library/Frameworks/Python.framework/Versions/Current/bin/python produced a lengthy error, part of which is shown:
A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.
/Library/WebServer/CGI-Executables/test.cgi in ()
15 #sys.path.append('/Library/Frameworks/Python.framework/Versions/6.0.0/lib/python2.6/site-packages/')
16
17 import MySQLdb
18 #import _mysql
19
MySQLdb undefined
/Library/WebServer/CGI-Executables/build/bdist.macosx-10.5-i386/egg/MySQLdb/__init__.py in ()
/Library/WebServer/CGI-Executables/build/bdist.macosx-10.5-i386/egg/_mysql.py in ()
/Library/WebServer/CGI-Executables/build/bdist.macosx-10.5-i386/egg/_mysql.py in __bootstrap__()
/Library/Frameworks/Python.framework/Versions/6.0.0/lib/python2.6/site-packages/pkg_resources.py in resource_filename(self=<pkg_resources.ResourceManager instance at 0x3c8a80>, package_or_requirement='_mysql', resource_name='_mysql.so')
848 """Return a true filesystem path for specified resource"""
849 return get_provider(package_or_requirement).get_resource_filename(
850 self, resource_name
851 )
852
self = <pkg_resources.ResourceManager instance at 0x3c8a80>, resource_name = '_mysql.so'
...
<class 'pkg_resources.ExtractionError'>: Can't extract file(s) to egg cache The following error occurred while trying to extract file(s) to the Python egg cache: [Errno 13] Permission denied: '/Library/WebServer/.python-eggs' The Python egg cache directory is currently set to: /Library/WebServer/.python-eggs Perhaps your account does not have write access to this directory? You can change the cache directory by setting the PYTHON_EGG_CACHE environment variable to point to an accessible directory.
args = ("Can't extract file(s) to egg cache\n\nThe followin...nt\nvariable to point to an accessible directory.\n",)
cache_path = '/Library/WebServer/.python-eggs'
manager = <pkg_resources.ResourceManager instance at 0x3c8a80>
message = "Can't extract file(s) to egg cache\n\nThe followin...nt\nvariable to point to an accessible directory.\n"
original_error = OSError(13, 'Permission denied')
This error seems to imply that it may have something to do with setting PYTHON_EGG_CACHE and/or permissions...
[edit] Solution:
To test which version of Python that Apache was using, I added the following code:
import sys
version = sys.version
path = sys.path
...
print "<h1>%s</h1>" % version
print "<h1>%s</h1>" % path
which indicated that Apache was indeed using the manufacturer-installed Python 2.5.1, and not Python 2.6.4 with the associated MySQLdb module. Thus, adding the following code to the original test.cgi fixed the problem:
import os
os.environ['PYTHON_EGG_CACHE'] = '/tmp'
import sys
sys.path.append('/Library/Frameworks/Python.framework/Versions/6.0.0/lib/python2.6/site-packages/MySQL_python-1.2.3c1-py2.6-macosx-10.5-i386.egg')
There is possibly a systematic fix by altering the PYTHONPATH in APACHE's httpd.conf, but I haven't yet figured it out.