大约有 47,000 项符合查询结果（耗时：0.0492秒） [XML]
How can I filter lines on load in Pandas read_csv function?
...
There isn't an option to filter the rows before the CSV file is loaded into a pandas object.
You can either load the file and then filter using df[df['field'] > constant], or if you have a very large file and you are worried about memory running out, then use an iterator and ...
How to concatenate multiple lines of output to one line?
If I run the command cat file | grep pattern , I get many lines of output. How do you concatenate all lines into one line, effectively replacing each "\n" with "\" " (end with " followed by space)?
...
The requested operation cannot be performed on a file with a user-mapped section open
Whenever I tried to copy 4 files into my bin folder, after stopping the main service, I am getting an error with one file (TexteDll). The error is:
...
rsync error: failed to set times on “/foo/bar”: Operation not permitted
...
If /foo/bar is on NFS (or possibly some FUSE filesystem), that might be the problem.
Either way, adding -O / --omit-dir-times to your command line will avoid it trying to set modification times on directories.
...
Commenting code in Notepad++
...ng) Language for the code. Also, if you copypaste a piece of code to a new file without specifying the language manually - or - it contains a mix of languages (eg. inline SQL in Python code), the block comment/uncomment will not work.
– Juha Untinen
Apr 22 '16 ...
Windows batch script launch program and exit console
...launch a program, such as notepad.exe . When I double click on this batch file, notepad starts normally, but the black window of the cmd who launched notepad.exe remains in the background. What do I have to do in order to launch notepad.exe and make the cmd window disappear?
...
How to configure Sublime Text 2/3 to use direct Ctrl+Tab order and to create new tabs after the last
...ymap:
click "Preferences"
click "Key Bindings"
You will see two settings file, select a file that named "User"
share
|
improve this answer
|
follow
|
...
Visual Studio opens the default browser instead of Internet Explorer
...you want Firefox in the
list, click "add" and point to the
firefox.exe filename
4) Click the "Set as Default" button
to make this the default browser when
you run any page on the site.
I however dislike the fact that this isn't as straightforward as it should be.
...
How to run multiple shells on Emacs
... to load a shell and ask for its name. That way you can name a shell "sort-files" if it is dedicated to sorting files and another one "hive" if it's dedicated to run hive queries. I use that everyday now (on emacs 24):
(defun create-shell ()
"creates a shell with a given name"
(interactive)...
Using parameters in batch files at Windows command line
In Windows, how do you access arguments passed when a batch file is run?
5 Answers
5...