{"id":43,"date":"2015-01-08T21:03:50","date_gmt":"2015-01-08T21:03:50","guid":{"rendered":"http:\/\/ontsandquants.com\/wp\/?p=43"},"modified":"2015-04-03T16:31:44","modified_gmt":"2015-04-03T16:31:44","slug":"esoteric-python-filename","status":"publish","type":"post","link":"http:\/\/ontsandquants.com\/wp\/?p=43","title":{"rendered":"Esoteric Python Filename"},"content":{"rendered":"

I had a strange but minor problem with Python and iPython on my system. \u00a0I have a source directory for each of my projects. \u00a0Whenever I used the Terminal to launch iPython or Python from that directory I received this error message:<\/p>\n

Traceback (most recent call last):<\/p>\n

\u00a0 File “\/Applications\/Canopy.app\/appdata\/canopy-1.4.1.1975.macosx-x86_64\/Canopy.app\/Contents\/lib\/python2.7\/site.py”, line 75, in <module><\/p>\n

\u00a0 \u00a0 import os<\/p>\n

\u00a0 File “\/Applications\/Canopy.app\/appdata\/canopy-1.4.1.1975.macosx-x86_64\/Canopy.app\/Contents\/lib\/python2.7\/os.py”, line 49, in <module><\/p>\n

\u00a0 \u00a0 import posixpath as path<\/p>\n

\u00a0 File “\/Applications\/Canopy.app\/appdata\/canopy-1.4.1.1975.macosx-x86_64\/Canopy.app\/Contents\/lib\/python2.7\/posixpath.py”, line 17, in <module><\/p>\n

\u00a0 \u00a0 import warnings<\/p>\n

\u00a0 File “warnings.py”, line 9, in <module><\/p>\n

\u00a0 \u00a0 from osi import *<\/p>\n

\u00a0 File “osi.py”, line 7, in <module><\/p>\n

\u00a0 \u00a0 import pandas as pd<\/p>\n

ImportError: No module named pandas<\/p>\n

This confused me, as I didn’t use a profile or startup script. \u00a0I designed a workaround where I launched iPython from another directory and did a cd from within iPython, but this was unsatisfying. \u00a0Today I decided to actually look at the error message in detail. \u00a0It turns out that I had a local script named “warnings.py” as part of my project which was clobbering the warnings module imported by the os module. \u00a0I renamed my local script and that fixed my problem. \u00a0I know it’s a bad idea to overload standard module names, I didn’t realize I was doing so.<\/p>\n","protected":false},"excerpt":{"rendered":"

I had a strange but minor problem with Python and iPython on my system. \u00a0I have a source directory for each of my projects. \u00a0Whenever I used the Terminal to launch iPython or Python from that directory I received this error message: Traceback (most recent call last): \u00a0 File “\/Applications\/Canopy.app\/appdata\/canopy-1.4.1.1975.macosx-x86_64\/Canopy.app\/Contents\/lib\/python2.7\/site.py”, line 75, in <module> \u00a0 …<\/p>\n

Esoteric Python Filename<\/span>Read More »<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[9],"tags":[],"_links":{"self":[{"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/43"}],"collection":[{"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=43"}],"version-history":[{"count":2,"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/43\/revisions"}],"predecessor-version":[{"id":50,"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=\/wp\/v2\/posts\/43\/revisions\/50"}],"wp:attachment":[{"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=43"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=43"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/ontsandquants.com\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=43"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}