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Lazy Method for Reading Big File in Python?
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If your computer, OS and python are 64-bit, then you can use the mmap module to map the contents of the file into memory and access it with indices and slices. Here an example from the documentation:
import mmap
with open("hello.txt", "r+") as f:
# memory-...
What's is the difference between include and extend in use case diagram?
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84
I often use this to remember the two:
My use case: I am going to the city.
includes -> dri...
Git pull without checkout?
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84
I had the very same issue with necessity to commit or stash current feature changes, checkout m...
Difference between decimal, float and double in .NET?
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Another difference: float 32-bit; double 64-bit; and decimal 128-bit.
– David
Aug 29 '16 at 15:08
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show 9...
UIRefreshControl - beginRefreshing not working when UITableViewController is inside UINavigationCont
...y after iOS 7. The table view may already have contentOffset, usually (0, -64).
So the right way to show refreshControl after programmingly begin refreshing is adding refreshControl's height to existing contentOffset.
[self.refreshControl beginRefreshing];
[self.tableView setContentOffset:CGPoin...
MySQL Great Circle Distance (Haversine formula)
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Bo Persson
84k1919 gold badges134134 silver badges196196 bronze badges
answered Aug 29 '11 at 4:08
Abdul ManafAb...
Error: free(): invalid next size (fast):
...** or even void**
then you will need to consider word size (8 bytes in a 64-bit system, 4 bytes in a 32-bit system) when allocating space for n pointers. The size of a pointer is the same of your word size.
So while you may wish to allocate space for n pointers, you are actually going to need n ...
ValueError: numpy.dtype has the wrong size, try recompiling
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64
(to expand a bit on my comment)
Numpy developers follow in general a policy of keeping a backw...
How to create a new object instance from a Type
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slavoo
4,6641212 gold badges3232 silver badges3737 bronze badges
answered Aug 25 '08 at 13:33
Konrad RudolphKon...
Can you change what a symlink points to after it is created?
...t.txt ln -s -f .bash_aliases test
$ grep -C3 ^unlink /tmp/output.txt
lstat64("test", {st_mode=S_IFLNK|0777, st_size=7, ...}) = 0
stat64(".bash_aliases", {st_mode=S_IFREG|0644, st_size=2043, ...}) = 0
symlink(".bash_aliases", "test") = -1 EEXIST (File exists)
unlink("test") ...