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Print current call stack from a method in Python code
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Here's an example of getting the stack via the traceback module, and printing it:
import traceback
def f():
g()
def g():
for line in traceback.format_stack():
print(line.strip())
f()
# Prints:
# File "so-stack.py", line 10, in <module>
# f()
# File "so-stack....
How to get all Errors from ASP.Net MVC modelState?
... Very helpful. Note in some scenarios, such as binding failures and bad requests, there will be ModelState entries with empty string for Value.ErrorMessage and instead a Value.Exception.Message
– AaronLS
Sep 16 '14 at 1:12
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How to loop over directories in Linux?
I am writing a script in bash on Linux and need to go through all subdirectory names in a given directory. How can I loop through these directories (and skip regular files)?
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Tab Vs Space preferences in Vim
...very accommodating when it comes to tab Vs. space preferences. As I understand it, the tabstop setting indicates the width of a tab character. The shiftwidth setting specifies how many columns to increment/decrement when using the << and >> commands, whereas the softtabstop set...
cancelling queued performSelector:afterDelay calls
...selector(mySel:) withObject:nil afterDelay:5.0];
// cancel the above call (and any others on self)
[NSObject cancelPreviousPerformRequestsWithTarget:self];
See apple docs, it's right at the end of the performSelector:withObject:afterDelay: description.
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CASCADE DELETE just once
... with the ON DELETE CASCADE rule. Is there any way I can perform a delete and tell Postgresql to cascade it just this once? Something equivalent to
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How to get the latest tag name in current branch in Git?
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git describe --tags and compare com last tag in github release page
– Adriano Resende
Aug 11 '16 at 21:23
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Calculate a MD5 hash from a string
...the following C# code to calculate a MD5 hash from a string.
It works well and generates a 32-character hex string like this:
900150983cd24fb0d6963f7d28e17f72
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What is the Git equivalent for revision number?
...r my personal projects I decided to use Git. So I installed Git yesterday, and I wonder what is the revision number equivalent in Git .
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The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or
...different methods for accessing the elements of a list or data.frame: [] and [[]] .
12 Answers
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