Python clear file cache

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Example of how to automatically download pictures in python. How to save IE as an attachment in python. How to understand python objects. How to use python tuples. How to create a Python virtual environment in Ubuntu If a 's' is appended to the flag argument, the cache will be opened in sync mode.

Writing to the cache will happen immediately and will not be buffered. If an application needs to use more than one cache, then it should use subcaches.

To create a subcache, append a series of one or more names separated by periods to the application name when creating a FileCache object e. All caches — main caches or subcaches — are totally independent. The absolute path to the directory where the cache files are stored. The appname passed to FileCache is used to determine a system-appropriate place to store the cache files. If the FileCache object was opened with the optional 's' flag argument, then calling sync will do nothing.

In addition to the four methods listed above, FileCache objects also support the following standard dict operations and methods:. Return the number of items in the FileCache f. Return the item of f with key key. Raises a KeyError if key is not in the cache. Remove f[key] from f. Return True if f has a key key , else False. Equivalent to not key in f. Rob Bednark This is the right answer And to add, if you want to remove the "bad" object from your cache, have a look at the page to find the location of the cache file, and "find" the offending package.

Interestingly, psycopg2 was also my problem package, but it was because the existing package was compiled for a different Postgresql library, which no longer existing on my server. Yihe Yihe 3, 2 2 gold badges 16 16 silver badges 20 20 bronze badges. What about pip3? Then possibly you should upgrade your pip or pip3, which I think should be the same thing since Python 2 was phased out : pip install --upgrade pip or pip3 install --upgrade pip.

Jace Browning Jace Browning Rotareti Rotareti Are they really debating for 3 years now about the justification to activate an option using False instead of True? If using virtualenv, look for the build directory under your environments root. Vajk Hermecz Vajk Hermecz 4, 31 31 silver badges 24 24 bronze badges. Mikhail M Mikhail M 1 1 gold badge 6 6 silver badges 21 21 bronze badges.

All Workers Are Essential Marcelo Soares Marcelo Soares 63 2 2 silver badges 8 8 bronze badges. Izana Izana 1, 21 21 silver badges 22 22 bronze badges. Piotr Dobrogost Piotr Dobrogost The Overflow Blog. Podcast Making Agile work for data science.

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This would invalidate our possibly existing entries dictionary which is why it must be deleted to allow it to be lazily reread later.

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