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Why can't non-default arguments follow default arguments?
...is you", b="True"):
... print a,b,x,y
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Reference O'Reilly - Core-Python
Where as this function make use of the default arguments syntactically correct for above function calls.
Keyword arguments calling prove useful for being a...
Forward declaring an enum in C++
... proposal at http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2764.pdf
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adding directory to sys.path /PYTHONPATH
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This is working as documented. Any paths specified in PYTHONPATH are documented as normally coming after the working directory but before the standard interpreter-supplied paths. sys.path.append() appends to the existing path. See here and here. If you want a particular direc...
What would be C++ limitations compared C language? [closed]
...tive C' and 'call the Java java.util.Queue class using JNI' or 'call the CPython library' - Objective C actually is a proper superset of C (including C99), and Java and CPython libraries both are callable directly from C without having to port unrelated code to the C++ language.
Of course you cou...
What is the difference between statically typed and dynamically typed languages?
... a statically-typed language with type inference).
Examples: Perl, Ruby, Python, PHP, JavaScript
Most scripting languages have this feature as there is no compiler to do static type-checking anyway, but you may find yourself searching for a bug that is due to the interpreter misinterpreting the t...
Explaining Apache ZooKeeper
... resources:
The paper: https://pdos.csail.mit.edu/6.824/papers/zookeeper.pdf
The lecture offered by MIT 6.824 from 36:00: https://youtu.be/pbmyrNjzdDk?t=2198
I would suggest watching the video, read the paper, and then watch the video again. It would be easier to understand if you know Raft befo...
urllib2.HTTPError: HTTP Error 403: Forbidden
I am trying to automate download of historic stock data using python. The URL I am trying to open responds with a CSV file, but I am unable to open using urllib2. I have tried changing user agent as specified in few questions earlier, I even tried to accept response cookies, with no luck. Can you pl...
How do I compare version numbers in Python?
... PEP 440 versions as “not strict” and therefore doesn’t match modern Python’s notion of what a valid version is.
As distutils.version is undocumented, here's the relevant docstrings.
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Replace all non-alphanumeric characters in a string
... same but allows the underscore as a word character (don't know why): docs.python.org/3.6/library/re.html#index-32
– JHS
Dec 23 '18 at 1:32
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What is the difference between YAML and JSON?
... YAML can allow an attacker to execute arbitrary code.
Observations:
Python programmers are generally big fans of YAML, because of the use of indentation, rather than bracketed syntax, to indicate levels.
Many programmers consider the attachment of "meaning" to indentation a poor choice.
If...