Question or issue on macOS: According to the documentation from python.org, python 3.2 install on mac os requires an upgrade to tcl/tk 8.5.9 (for use of IDLE). In my haste, I have done both. Now my friend told me that python 3 is not recommended yet because only the built-ins and a few modules have […]
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Question or problem about Python programming: Either interactively, such as from within an Ipython session, or from within a script, how can you determine which backend is being used by matplotlib?
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Question or problem about Python programming: Occasionally I run into comments or responses that state emphatically that running pip under sudo is “wrong” or “bad”, but there are cases (including the way I have a bunch of tools set up) where it is either much simpler, or even necessary to run it that way.
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Question or problem about Python programming: In Pandas, when I select a label that only has one entry in the index I get back a Series, but when I select an entry that has more then one entry I get back a data frame.
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Question or problem about Python programming: So I was wondering how to best create a list of blank lists:
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Question or problem about Python programming: >>> (float(‘inf’)+0j)*1 (inf+nanj) Why? This caused a nasty bug in my code. Why isn’t 1 the multiplicative identity, giving (inf + 0j)? How to solve the problem: Solution 1: The 1 is converted to a complex number first, 1 + 0j, which then leads to an inf * 0 […]
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Question or problem about Python programming: When testing for membership, we can use:
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Question or problem about Python programming: I have a csv file which isn’t coming in correctly with pandas.read_csv when I filter the columns with usecols and use multiple indexes.
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Question or problem about Python programming: Why does Pandas tell me that I have objects, although every item in the selected column is a string — even after explicit conversion.
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Question or problem about Python programming: The documentation doesn’t guarantee that. Is there any other place that it is documented?
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