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Can I mask an input text in a bat file?
... the command line. For example, you can replace the cscript section with: 'python -c "from getpass import getpass; pwd = getpass(); print pwd;"'
– Cerin
Jul 30 '10 at 17:15
1
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Shortest distance between a point and a line segment
...to be (that's why I made this).
Implementation of theory by Paul Bourke.
Python:
def dist(x1, y1, x2, y2, x3, y3): # x3,y3 is the point
px = x2-x1
py = y2-y1
norm = px*px + py*py
u = ((x3 - x1) * px + (y3 - y1) * py) / float(norm)
if u > 1:
u = 1
elif u <...
How to check whether a pandas DataFrame is empty?
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In Python, try/except is cheap and if is expensive. Python is neither Java nor C; here it's Easier to Ask Forgiveness than Permission
– Nick Marinakis
Apr 14 at 1:26
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What does this square bracket and parenthesis bracket notation mean [first1,last1)?
... programming languages tends to be zero-based, such as C, C++, Javascript, Python, while other languages such as Mathematica, Fortran, Pascal are one-based.
These differences can lead to subtle fence post errors, aka, off-by-one bugs when implementing Mathematical algorithms such as for-loops.
...
Why not use tables for layout in HTML? [closed]
... to separate content from layout
But this is a fallacious argument; Cliché Thinking.
It's not fallacious at all because HTML was designed intentionally. Misuse of an element might not be completely out of question (after all, new idioms have developed in other languages, as well) but possible n...
Please explain some of Paul Graham's points on Lisp
...about language fundamentals. You wouldn't hear a similar claim of Java, C, Python, Perl, Haskell, etc. as a good beginner's project!
– Matt Curtis
Apr 26 '10 at 0:57
9
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MongoDB/NoSQL: Keeping Document Change History
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For users of Python (python 3+, and up of course) , there's HistoricalCollection that's an extension of pymongo's Collection object.
Example from the docs:
from historical_collection.historical import HistoricalCollection
from pymongo i...
Best practices for circular shift (rotate) operations in C++
...y wiki
3 revs, 2 users 86%Dídac Pérez
6
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Efficiency of Java “Double Brace Initialization”?
...ring instead huge classes with fewer methods...
– Rogério
Dec 27 '09 at 23:26
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show 21 more comments
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Can I have an IF block in DOS batch file?
... msg * with any othe operation...
goto Continue1
)
:Continue1
If exist "C:\Python31" (
msg * 2nd line WORKS FINE rem You can relpace msg * with any othe operation...
goto Continue2
)
:Continue2
If exist "C:\Python31\Lib\site-packages\PyQt4" (
msg * 3th line WORKS FINE rem You can relpace msg *...