Django 1.8 dynamic url configuration based on variable

Question

This seems to not work in django:

urlpatterns = [
    url(r'^%s/admin/' %(BASE_PATH), include(admin.site.urls)),
    url(r'^%s/$' %(BASE_PATH), home_view),
    url(r'^%s/ping/$' %(BASE_PATH), ping),
    url(r'^%s/echo/$' %(BASE_PATH), echo),
    url(gcd_str, gcd),
]

If I set the BASE_PATH to 'test' and go to http://host/test/echo I get a 404 error but my paths look like this on the error page:

^/test/admin/
^/test/$
^/test/ping/$
^/test/echo/$
^/test/gcd/$

If I hard-code like this it works:

urlpatterns = [
    url(r'^test/admin/', include(admin.site.urls)),
    url(r'^test/$', home_view),
    url(r'^test/ping/$', ping),
    url(r'^test/echo/$', echo),
]

I guess that the pattern does not get interpolated correctly, if I use a string without the r it seems to behave the same.

nu11p01n73R · Accepted Answer · 2015-06-21 04:09:04Z

1

The issue is that you are setting BASE_PATH to

/test

Where as when you hardcode then you write it as

test

The starting / makes all the difference, as the url pattern expects ( as per BASE_PATH is the one that starts with

^/test/admin/
|| |
|| matches test
|matches /
matches start of the pattern

answered Jun 21, 2015 at 4:09

nu11p01n73R

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1 Comment

mikeb Over a year ago

Thank you, can't believe I didn't notice that.

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