大约有 47,000 项符合查询结果（耗时：0.0310秒） [XML]
PyLint, PyChecker or PyFlakes? [closed]
...r(object) :
def __init__(self):
print 'Rendering...'
for y in xrange(-39, 39):
stdout.write('\n')
for x in xrange(-39, 39):
if self.mandelbrot(x/40.0, y/40.0) :
stdout.write(' ')
else:
...
What integer hash function are good that accepts an integer hash key?
... factors with it. This way the hash function covers all your hash space uniformly.
Edit: The biggest disadvantage of this hash function is that it preserves divisibility, so if your integers are all divisible by 2 or by 4 (which is not uncommon), their hashes will be too. This is a problem in hash ...
What does “#define _GNU_SOURCE” imply?
...to traditional functions which were omitted from the POSIX standard (often for good reason, such as being replaced with better alternatives, or being tied to particular legacy implementations)
access to low-level functions that cannot be portable, but that you sometimes need for implementing system ...
List all the files that ever existed in a Git repository
...
This is a simplified variation of Strager's solution:
git log --pretty=format: --name-status | cut -f2- | sort -u
Edit: Thanks to Jakub for teaching me a bit more in the comments, this version has a shorter pipeline and gives git more opportunity to get things right.
git log --pretty=format: ...
Get exception description and stack trace which caused an exception, all as a string
...
See the traceback module, specifically the format_exc() function. Here.
import traceback
try:
raise ValueError
except ValueError:
tb = traceback.format_exc()
else:
tb = "No error"
finally:
print tb
...
Making custom right-click context menus for my web-app
...ppets as they're a really cool new feature. I leave the good jsfiddle here for reference thought (click on the 4th panel to see them work).
New Stack Snippet:
// JAVASCRIPT (jQuery)
// Trigger action when the contexmenu is about to be shown
$(document).bind("contextmenu", function (event) ...
Are list-comprehensions and functional functions faster than “for loops”?
In terms of performance in Python, is a list-comprehension, or functions like map() , filter() and reduce() faster than a for loop? Why, technically, they run in a C speed , while the for loop runs in the python virtual machine speed ?.
...
How to capture stdout output from a Python function call?
...
Thanks! And thanks for adding the advanced section... I originally used a slice assignment to stick the captured text into the list, then I bonked myself in the head and used .extend() instead so it could be used concatenatively, just as you no...
Asking the user for input until they give a valid response
...ates.")
Encapsulating it All in a Function
If you need to ask your user for a lot of different values, it might be useful to put this code in a function, so you don't have to retype it every time.
def get_non_negative_int(prompt):
while True:
try:
value = int(input(prompt...
File Upload ASP.NET MVC 3.0
...ow to achieve this in ASP.NET MVC.
So you would start by creating an HTML form which would contain a file input:
@using (Html.BeginForm("Index", "Home", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
<input type="file" name="file" />
<input type="submit" value="OK" /...