[Zope] ImportError: No module named cPersistence

[Michael Long]

> On Thu, 29 Jan 2004 11:03:39 -0500 (EST)
>> Something went horribly wrong when installing MySQL-python-0.9.3b1.
>> Many of the*.so files were deleted. I replaced them from source and
>> now get the following error.
>
> Please explain how you can replace .so files from source, these are
> compiled object files!

The reality is that I don't understand how zope/python works at this level,
although I am trying to learn. The fact that I can build zope from a tarball is a
small miracle :-)

I found the .so files at /Zope-2.7.0-rc1/build-base/python-2.3/build-lib/

>
> Sounds like you need to recompile your C extensions. This is easily done
> from your SOFTWARE_HOME directory:
>
> % python setup.py build_ext -if

This worked perfectly, I actually ran it from the ZOPE_HOME.

Now getting back to solving my original problem of connecting to MySQL. When I put
ZMySQLDA in the products directory and start zope I get the following error:

2004-01-29T17:37:34 ERROR(200) Zope Could not import Products.ZMySQLDA
Traceback (most recent call last):
  File "/opt/Zope-2.7.0-rc1/lib/python/OFS/Application.py", line 654, in
import_product
    product=__import__(pname, global_dict, global_dict, silly)
  File "/opt/Zope-2.7.0-rc1/lib/python/Products/ZMySQLDA/__init__.py", line 91, in ?
    def panic(self, msg):
  File "/opt/Zope-2.7.0-rc1/lib/python/Products/ZMySQLDA/DA.py", line 92, in ?
  File "/opt/Zope-2.7.0-rc1/lib/python/Products/ZMySQLDA/db.py", line 89, in ?
ImportError: No module named _mysql
Traceback (most recent call last):
  File "/opt/Zope-2.7.0-rc1/lib/python/Zope/Startup/run.py", line 49, in ?
    run()
  File "/opt/Zope-2.7.0-rc1/lib/python/Zope/Startup/run.py", line 19, in run
    start_zope(opts.configroot)
  File "/opt/Zope-2.7.0-rc1/lib/python/Zope/Startup/__init__.py", line 51, in
start_zope
    starter.startZope()
  File "/opt/Zope-2.7.0-rc1/lib/python/Zope/Startup/__init__.py", line 230, in
startZope
    Zope.startup()
  File "/opt/Zope-2.7.0-rc1/lib/python/Zope/__init__.py", line 46, in startup
    _startup()
  File "/opt/Zope-2.7.0-rc1/lib/python/Zope/App/startup.py", line 45, in startup
    OFS.Application.import_products()
  File "/opt/Zope-2.7.0-rc1/lib/python/OFS/Application.py", line 631, in
import_products
    import_product(product_dir, product_name, raise_exc=debug_mode)
  File "/opt/Zope-2.7.0-rc1/lib/python/OFS/Application.py", line 654, in
import_product
    product=__import__(pname, global_dict, global_dict, silly)
  File "/opt/Zope-2.7.0-rc1/lib/python/Zope/Startup/__init__.py", line 91, in ?
    def panic(self, msg):
  File "/opt/Zope-2.7.0-rc1/lib/python/Products/ZMySQLDA/DA.py", line 92, in ?
  File "/opt/Zope-2.7.0-rc1/lib/python/Products/ZMySQLDA/db.py", line 89, in ?
ImportError: No module named _mysql