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Check if Python Package is installed
...
If you mean a python script, just do something like this:
Python 3.3+ use sys.modules and find_spec:
import importlib.util
import sys
# For illustrative purposes.
name = 'itertools'
if name in sys.modules:
print(f"{name!r} already in sys.modules")
elif (spec := importlib.util.find_spec(name))...
Web-scraping JavaScript page with Python
...e/'
r = Render(url)
result = r.frame.toHtml()
# This step is important.Converting QString to Ascii for lxml to process
# The following returns an lxml element tree
archive_links = html.fromstring(str(result.toAscii()))
print archive_links
# The following returns an array containing the URLs
ra...
How to convert 2D float numpy array to 2D int numpy array?
How to convert real numpy array to int numpy array?
Tried using map directly to array but it did not work.
4 Answers
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Search text in stored procedure in SQL Server
...rmation_schema didn't search content-text (within SProcs), instead use of "sys.procedures" worked for me. I understand that Microsoft recommends the use of information_schema, however apparently this is not working for many, hence Microsoft should look into this issue.
– Eddie ...
How do I create a namespace package in Python?
... but here I mean "non-package module" when I say "module".
First it scans sys.path for a module or regular package. If it succeeds, it stops searching and creates and initalizes the module or package. If it found no module or regular package, but it found at least one directory, it creates and init...
setup.py examples?
...e)
wheels!
I would recommend to get some understanding of packaging-ecosystem (from the guide pointed by gotgenes) before attempting mindless copy-pasting.
Most of examples out there in the Internet start with
from distutils.core import setup
but this for example does not support building a...
How Big can a Python List Get?
...AX is defined in pyport.h to be ((size_t) -1)>>1
On a regular 32bit system, this is (4294967295 / 2) / 4 or 536870912.
Therefore the maximum size of a python list on a 32 bit system is 536,870,912 elements.
As long as the number of elements you have is equal or below this, all list functi...
Relative paths in Python
...unning the file directly. If so, that doesn't appear to be the case on my system (python 2.5.1 on OS X 10.5.7):
#foo.py
import os
print os.getcwd()
print __file__
#in the interactive interpreter
>>> import foo
/Users/jason
foo.py
#and finally, at the shell:
~ % python foo.py
/Users/jaso...
Convert interface{} to int
... ok := val.(int) // Alt. non panicking version
The reason why you cannot convert an interface typed value are these rules in the referenced specs parts:
Conversions are expressions of the form T(x) where T is a type and x is an expression that can be converted to type T.
...
A non-constant valu...
What is the largest TCP/IP network port number allowable for IPv4?
...
The port number is an unsigned 16-bit integer, so 65535.
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