大约有 42,000 项符合查询结果（耗时：0.0252秒） [XML]
Why do we need the “finally” clause in Python?
...
You can use finally to make sure files or resources are closed or released regardless of whether an exception occurs, even if you don't catch the exception. (Or if you don't catch that specific exception.)
myfile = open("test.txt", "w")
try:
myfile.write("the Answer is: ")
...
Need a good hex editor for Linux [closed]
...a < Peta < Exabytes)
Could open your devices on Linux, Windows or MacOSX.
Memory Usage : Currently ~10 MegaBytes while opened multiple > ~8GB files.
Could operate thru XOR encryption.
Written with C++/wxWidgets GUI libs and can be used with other OSes such as Mac OS, Windows as native appl...
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.
...
Unix shell script find out which directory the script file resides?
...
The original post contains the solution (ignore the responses, they don't add anything useful). The interesting work is done by the mentioned unix command readlink with option -f. Works when the script is called by an absolute as well as b...
Adding a guideline to the editor in Visual Studio
...
This is originally from Sara's blog.
It also works with almost any version of Visual Studio, you just need to change the "8.0" in the registry key to the appropriate version number for your version of Visual Studio.
The guide line shows up in the Output window too. (Visual Studio 20...
Recommended Vim plugins for JavaScript coding? [closed]
...is much better IMO) with Vim using the Syntastic Vim plugin. See my other post for more info.
Source-Code browsing / Tag-list
There's also a very neat way to add tag-listing using Mozilla's DoctorJS (formerly jsctags), which is also used in Cloud9 IDE's Ace online editor.
Install the following p...
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb
...pip install mysql-python
or if not using a virtual environment (on *nix hosts):
sudo pip install mysql-python
share
|
improve this answer
|
follow
|
...
Wait for a process to finish
...ed Jan 12 '17 at 12:41
Rauno PalosaariRauno Palosaari
1,51911 gold badge88 silver badges55 bronze badges
...
Generating a PNG with matplotlib when DISPLAY is undefined
...
The main problem is that (on your system) matplotlib chooses an x-using backend by default. I just had the same problem on one of my servers. The solution for me was to add the following code in a place that gets read before any other pylab/matplotlib/pyplot import:
import matpl...
Environment variable to control java.io.tmpdir?
... variable, but it was unclear if there was some unknown variable for other OSes. It looks like there isn't, at least given what we know about OpenJDK.
– delfuego
Dec 18 '09 at 3:16
...