大约有 6,000 项符合查询结果（耗时：0.0295秒） [XML]
How to call an external command?
...ficial documentation recommends the subprocess module over the alternative os.system():
The subprocess module provides more powerful facilities for spawning new processes and retrieving their results; using that module is preferable to using this function [os.system()].
The Replacing Older Fun...
How do I get a list of all subdomains of a domain? [closed]
...
Correct command should be: dig @123.456.789.123 DOMAIN.COM -t axfr
– Superbiji
Jan 8 '14 at 7:48
8
...
Reading a file line by line in Go
... From the docs: "ReadLine is a low-level line-reading primitive. Most callers should use ReadBytes('\n') or ReadString('\n') instead or use a Scanner."
– mdwhatcott
Mar 18 '14 at 23:20
...
How to call a shell script from python code?
...
This gives: OSError: [Errno 13] Permission denied. my script does not required to run with sudo. @Manoj Govindan
– alper
Apr 19 '17 at 12:04
...
Convert columns to string in Pandas
...der,
# Setup
df = pd.DataFrame({'A': ['a', 'b', 'c'], 'B': [{}, [1, 2, 3], 123]})
df
A B
0 a {}
1 b [1, 2, 3]
2 c 123
Upto pandas 0.25, there was virtually no way to distinguish that "A" and "B" do not have the same type of data.
# pandas <= 0.25
df.dtypes
A ...
Press alt + numeric in bash and you get (arg [numeric]) what is that?
... + numeric and then you press a character, you'll get num caracters: (arg: 123) + a -> 123 times "a"
share
|
improve this answer
|
follow
|
...
How to find the Windows version from the PowerShell command line
...
Since you have access to the .NET library, you could access the OSVersion property of the System.Environment class to get this information. For the version number, there is the Version property.
For example,
PS C:\> [System.Environment]::OSVersion.Version
Major Minor Build Revisi...
Python - Get path of root project structure
...n.py
utils.py
In definitions.py you can define (this requires import os):
ROOT_DIR = os.path.dirname(os.path.abspath(__file__)) # This is your Project Root
Thus, with the Project Root known, you can create a variable that points to the location of the configuration (this can be defined anyw...
Is leaked memory freed up when the program exits?
...t a process no longer has a reference to, and thus can no longer free. The OS still keeps track of all the memory allocated to a process, and will free it when that process terminates.
In the vast majority of cases the OS will free the memory - as is the case with normal "flavors" of Windows, Linux...
How to check if running in Cygwin, Mac or Linux?
...ing to the very helpful schot (in the comments), uname -s gives Darwin for OSX and Linux for Linux, while my Cygwin gives CYGWIN_NT-5.1. But you may have to experiment with all sorts of different versions.
So the bash code to do such a check would be along the lines of:
unameOut="$(uname -s)"
case...