Null object in Python - Stack Overflow
Jul 20, 2010 · None, Python's null? There's no null in Python; instead there's None. As stated already, the most accurate way to test that something has been given None as a value is to …
How to test a variable is null in python - Stack Overflow
May 12, 2017 · How to test a variable is null in python [duplicate] Asked 8 years, 5 months ago Modified 7 years, 8 months ago Viewed 465k times
What is the Python equivalent to assigning NULL to a pointer in C?
Note that unlike in NULL in C, None is not a "pointer to nowhere": it is actually the only instance of class NoneType. Therefore, as None is a regular object, you can test for it just like any other …
Is there a Python equivalent of the C# null-coalescing operator?
Feb 12, 2011 · The relevant PEP considering adding null-aware operators to the language is PEP 505 and the discussion relevant to the document is in the python-ideas thread.
null - python: return, return None, and no return at all -- is there ...
In python I can monkey patch anything with anything (this is by design and it's a great feature if used sparingly). Specifically, I can monkey-patch a function that has a return with one that …
python - Remove row with null value from pandas data frame
Jun 14, 2017 · I'm trying to remove a row from my data frame in which one of the columns has a value of null. Most of the help I can find relates to removing NaN values which hasn't worked …
How do I test for null list entry in python list - Stack Overflow
Oct 8, 2013 · 9 I have a python list [1,2,,4,5,6]. What is the best method for testing for the missing, or null, list element? I am currently performing a if element != '' but I think there is a built-in test …
python - How to remove those "\x00\x00" - Stack Overflow
May 30, 2017 · How to remove those "\\x00\\x00" in a string ? I have many of those strings (example shown below). I can use re.sub to replace those "\\x00". But I am wondering whether …
numpy - Finding the null space of a matrix - Stack Overflow
As of last year (2017), scipy now has a built-in null_space method in the scipy.linalg module (docs). The implementation follows the canonical SVD decomposition and is pretty small if you …
How can I insert NULL data into MySQL database with Python?
Jun 14, 2015 · 0 I had faced this same issue to make numeric and dates fields null. we can make varchar fields null using 'NULL' as string in python but its a wrong method. Solution for this is …