Karl Knechtel

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Karl Knechtel has asked 6 questions and find answers to 225 problems.

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Karl Knechtel questions

What causes `None` results from BeautifulSoup functions? How can I avoid "AttributeError: 'NoneType' object has no attribute..." with BeautifulSoup?
Telling __import__ where to look - am I stuck with sys.path?
Dealing with Option and Either types - idiomatic conversions?
"Flat is better than nested" - for data as well as code?
Why is math.factorial much slower in Python 2.x than 3.x?

Karl Knechtel answers

How can I properly hash dictionaries with a common set of keys, for deduplication purposes?
How can I use user input to choose a parameter name and an attribute name?
Why is 'not(True) * True' valid syntax, unlike 'True * not(True)'? [duplicate]
Why can't I call a function from another function using exec
How to capture error message in python that is not an exception?
What causes `None` results from BeautifulSoup functions? How can I avoid "AttributeError: 'NoneType' object has no attribute..." with BeautifulSoup?
How do I format a date and also pad it with spaces?
What other data structures are available in the C++ STL?
Python Byte doesn't print binary
Why is the [:] included in `.removeprefix()` definition?