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POProblems with SQLAlchemy and VirtualEnv
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  1. POProblems with SQLAlchemy and VirtualEnv
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    copied!<p>I'm trying to use SQLAlchemy under a virtualenv on OS X 10.5, but cannot seem to get it to load whatsoever.</p> <p>Here's what I've done</p> <pre><code>mkvirtualenv --no-site-packages test easy_install sqlalchemy </code></pre> <p>I try to import sqlalchemy from the interpreter and everything works fine, but if i try to import sqlalchemy from a python script, I get the following error:</p> <p>Here's the tutorial script from <a href="http://www.ibm.com/developerworks/aix/library/au-sqlalchemy/" rel="nofollow noreferrer">IBM</a></p> <pre><code>from sqlalchemy.ext.declarative import declarative_base from sqlalchemy import Table, Column, Integer, String, MetaData, ForeignKey Base = declarative_base() class Filesystem(Base): __tablename__ = 'filesystem' path = Column(String, primary_key=True) name = Column(String) def __init__(self, path,name): self.path = path self.name = name def __repr__(self): return "&lt;Metadata('%s','%s')&gt;" % (self.path,self.name) </code></pre> <p>I try running 'python test.py' and this is the result:</p> <pre><code>$ python test.py Traceback (most recent call last): File "test.py", line 4, in &lt;module&gt; from sqlalchemy import Table, Column, Integer, String, MetaData, ForeignKey File "/Users/grant/Development/Aircraft/sqlalchemy.py", line 3, in &lt;module&gt; from sqlalchemy.ext.declarative import declarative_base ImportError: No module named ext.declarative </code></pre> <p>Here's what's in my sys.path</p> <pre><code>&gt;&gt;&gt; import sys &gt;&gt;&gt; print '\n'.join(sys.path) /Users/grant/Development/Python/test/lib/python2.6/site-packages/setuptools-0.6c9-py2.6.egg /Users/grant/Development/Python/test/lib/python2.6/site-packages/SQLAlchemy-0.5.4p2-py2.6.egg /Users/grant/Development/Python/test/lib/python26.zip /Users/grant/Development/Python/test/lib/python2.6 /Users/grant/Development/Python/test/lib/python2.6/plat-darwin /Users/grant/Development/Python/test/lib/python2.6/plat-mac /Users/grant/Development/Python/test/lib/python2.6/plat-mac/lib-scriptpackages /Users/grant/Development/Python/test/lib/python2.6/lib-tk /Users/grant/Development/Python/test/lib/python2.6/lib-old /Users/grant/Development/Python/test/lib/python2.6/lib-dynload /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6 /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-darwin /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac/lib-scriptpackages /Users/grant/Development/Python/test/lib/python2.6/site-packages </code></pre> <p>Any ideas on what's going on??</p>
 

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