can't use caching: AttributeError: module 'requests_cache' has no attribute 'delete'

[abubelinha]

Python 3.8.7, pygbif 0.6.4:

Python 3.8.7 (tags/v3.8.7:6503f05, Dec 21 2020, 17:59:51) [MSC v.1928 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import pygbif
>>> pygbif.__version__
'0.6.4'
>>> pygbif.caching(True)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\\Python38\lib\site-packages\pygbif\caching.py", line 86, in caching
    requests_cache.delete(expired=True)
AttributeError: module 'requests_cache' has no attribute 'delete'

I saw some other issues about requests_cache and they are closed, so I understand they have been solved.
But I think my pygbif version is the most recent available.
Any ideas?

[CecSve]

@jhnwllr can you investigate this when you have a chance?

[abubelinha]

For now I downgraded to pygbif 0.6.3 and my above lines do not raise any errors.

I think this was the origin of the problem because it introduced the above error line 86:
#127

requests_cache.delete(expired=True)

[jhnwllr]

@abubelinha Can I ask what version of the requests_cache library you are using?

We might need to update the minimum version in requirements.txt.

I am using requests_cache 1.2.0.

And I don't get any error on import.

[abubelinha]

>>> import requests_cache
>>> requests_cache.__version__
'1.0.0'

[jhnwllr]

@abubelinha
I can reproduce the error when I downgrade requests_cache enough

Type "help", "copyright", "credits" or "license" for more information.
>>> import pygbif        
>>> pygbif.__version__
'0.6.4'
>>> pygbif.caching(True)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\ftw712\Desktop\packages\pygbif\pygbif\caching.py", line 86, in caching
    requests_cache.delete(expired=True)
    ^^^^^^^^^^^^^^^^^^^^^
AttributeError: module 'requests_cache' has no attribute 'delete'
>>> import requests_cache 
>>> requests_cache.__version__ 
'0.7.0'
>>>

[lucbettaieb]

Can this be fixed by updating the requirements.txt line for requests-cache to then be >=1.2.0?

Would be an easy fix, then.

[abubelinha]

Thanks @CecSve , @jhnwllr and @lucbettaieb

• I upgraded requests_cache to 1.2.0.
• Then I upgraded pygbif to 0.6.4

Now I can call pygbif.caching(True) and "it works", since there is no error message.

But caching is proving to be useless for my use case (see #146).