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Different floating point result with optimization enabled - compiler bug?
... is related to the debug statements. And it looks like there's a rounding error caused by loading the values into registers during the output statements, which is why others found that you can fix this with -ffloat-store
Further question:
I was wondering, should I always turn on -ffloat-store opti...
Get last dirname/filename in a file path argument in Bash
I'm trying to write a post-commit hook for SVN, which is hosted on our development server. My goal is to try to automatically checkout a copy of the committed project to the directory where it is hosted on the server. However I need to be able to read only the last directory in the directory strin...
How do I access the request object or any other variable in a form's clean() method?
... but how can I access the request object? Can I modify the clean method to allow variables input?
11 Answers
...
Read Excel File in Python
...value))
except ValueError:
pass
finally:
values.append(value)
item = Arm(*values)
items.append(item)
for item in items:
print item
print("Accessing one single value (eg. DSPName): {0}".format(item.dsp_name))
print
...
Regular expression for floating point numbers
...ogramming in:
// will most likely result in an "Illegal escape character" error
String wrongPattern = "\.";
// will result in the string "\."
String correctPattern = "\\.";
All this escaping can get very confusing. If the language you are working with supports raw strings, then you should use tho...
Extracting extension from filename in Python
...filename = "example.jpeg"
>>> filename.split(".")[-1]
'jpeg'
No error when file doesn't have an extension:
>>> "filename".split(".")[-1]
'filename'
But you must be careful:
>>> "png".split(".")[-1]
'png' # But file doesn't have an extension
Also will not work wi...
Select by partial string from a pandas DataFrame
...ed solution above:
df[df["A"].str.contains("Hello|Britain")]
and got an error:
ValueError: cannot mask with array containing NA / NaN values
you can transform NA values into False, like this:
df[df["A"].str.contains("Hello|Britain", na=False)]
...
Iterator invalidation rules
...
I think I made an error, because std::basic_string does not seem to be counted as a container, and certainly not a container in the section of the standard that note applies to. Still, where does it say SSO is disallowed (I know COW is)?
...
git produces Gtk-WARNING: cannot open display
...dmin rights and after running git push origin master I get the following error message:
4 Answers
...
How to pass prepareForSegue: an object
...
I prefer Simon's method. As it will tell me the errors at compile time. For example, if I missed the declaration of myData in the destination view controller, I will know immediately. But for your scenario, your approach seems good!
– Abdurrahman Mube...