Upgrading a Python or PIP component that is also used in the upgrading of a Python or PIP component can be a potential cause of a deadlock or package database corruption. # Perform the upgrade using just the valid package name # Indicate what package is being processed # Separate the output of package upgrades with a blank line # (c) Immediately follow the package name with an equal sign # (b) Follow the rule of no white space in the package names # (a) Do not start with invalid characters # package name to the replacement string in group 1.
# that meet the following three criteria and pass the To see the anatomy of the command more clearly, this is the exact equivalent of the above pip3 command with comments: # Match lines from pip's local package list output It also runs on Cygwin64 installed on Windows 10. Tested and regularly used in a Linux 4.8.86_64 cluster and tested on five other Linux/Unix flavors. Details of the sed operation can be scrutinized with the commented version 2. The above command uses the simplest and most portable pip syntax in combination with sed and sh to overcome these issues completely.
Crashing of xargs because of common pip or pip3 child process failures.Portability issues due to changing pip command line features.
This solution is well designed and tested 1, whereas there are problems with even the most popular solutions. To get extended regular expressions, use -E instead of -r in the solution above. OS X, as of July 2017, ships with a very old version of sed (a dozen years old).
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pip3 install -U \1/p' |shįor pip, just remove the 3s as such: pip freeze -local |sed -rn 's/^(*)=.*/echo echo Processing \1. For pip3, use this: pip3 freeze -local |sed -rn 's/^(*)=.*/echo echo Processing \1.
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