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How to form tuple column from two columns in Pandas
...rtable with zip. It comes in handy when dealing with column data.
df['new_col'] = list(zip(df.lat, df.long))
It's less complicated and faster than using apply or map. Something like np.dstack is twice as fast as zip, but wouldn't give you tuples.
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Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0
...ll 64-bit Git for Windows 2.
Technical details
0 [main] us 0 init_cheap: VirtualAlloc pointer is null, Win32 error 487
AllocationBase 0x0, BaseAddress 0x68570000, RegionSize 0x2A0000, State 0x10000
PortableGit\bin\bash.exe: *** Couldn't reserve space for cygwin's heap, Win32 error 0
This...
Way to go from recursion to iteration
...ack, heap does not have memory restrictions. See gribblelab.org/CBootCamp/7_Memory_Stack_vs_Heap.html
– yuqli
Aug 28 '18 at 3:22
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show 9 mo...
Cross compile Go on OSX?
...al/go/src
then compile the Go compiler:
sudo GOOS=windows GOARCH=386 CGO_ENABLED=0 ./make.bash --no-clean
You need to repeat this step for each OS and Architecture you wish to cross compile by changing the GOOS and GOARCH parameters.
If you are working in user mode as I do, sudo is needed beca...
How to “inverse match” with regex?
...his.
You could use look-ahead. Using python as an example
import re
not_andrea = re.compile('(?!Andrea)\w{6}', re.IGNORECASE)
To break that down:
(?!Andrea) means 'match if the next 6 characters are not "Andrea"'; if so then
\w means a "word character" - alphanumeric characters. This is equ...
SqlDataAdapter vs SqlDataReader
...ld have when using a SqlDataReader:
Using cn As New SqlConnection("..."), _
cmd As New SqlCommand("...", cn)
cn.Open()
Using rdr As SqlDataReader = cmd.ExecuteReader()
While rdr.Read()
''# ...
End While
End Using
End Using
equivalent C#:
using ...
PowerShell: Run command from script's directory
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Holy scripting gods, I'm SO DISAPPOINTED .\_/. — for this killed half of my day! People, seriously? Seriously?..
– ulidtko
Dec 29 '14 at 14:56
2
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Why is the minimalist, example Haskell quicksort not a “true” quicksort?
...x?p=1407357&seqNum=3 -- Andrey Alexandrescu
– The_Ghost
Oct 11 '11 at 17:32
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Why can't I define a static method in a Java interface?
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While I understand the arguments, I agree with @Chris_Betti (even for non-generic types): it'd be nice that the code structure ensures that some classes implements a specific static API. Maybe it is possible using a different concept...
– Juh_
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Count the number of commits on a Git branch
... to get version-revision from Git in format like '$refname-c$count-g$short$_dirty' which expands to master-c137-gabd32ef.
Help is included to script itself.
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