大约有 14,600 项符合查询结果（耗时：0.0417秒） [XML]
Pandas read_csv low_memory and dtype options
...={'user_id': int}
to the pd.read_csv() call will make pandas know when it starts reading the file, that this is only integers.
Also worth noting is that if the last line in the file would have "foobar" written in the user_id column, the loading would crash if the above dtype was specified.
Example ...
MSBuild doesn't copy references (DLL files) if using project dependencies in solution
...
Take a look at:
This MSBuild forum thread I started
You will find my temporary solution / workaround there!
(MyBaseProject needs some code that is referencing some classes (whatever) from the elmah.dll for elmah.dll being copied to MyWebProject1's bin!)
...
How can I change an element's text without changing its child elements?
...g. if the text was at the end of the element first, it would now be at the start.
– Matt
Aug 31 '15 at 17:47
It won't ...
Execute Python script via crontab
...
Put your script in a file foo.py starting with
#!/usr/bin/python
then give execute permission to that script using
chmod a+x foo.py
and use the full path of your foo.py file in your crontab.
See documentation of execve(2) which is handling the shebang...
How safe is it to store sessions with Redis?
...he commands the server receives, and recreates the DB from scratch on cold start, from the saved file. The default disk-sync policy is to flush once every second (IIRC) but can be set to lock and write on every command.
Using both the snapshots and the incremental log seems to offer both a long ter...
what's the correct way to send a file from REST web service to client?
I've just started to develop REST services, but I've come across a difficult situation: sending files from my REST service to my client. So far I've gotten the hang of how to send simple data types (strings, integers, etc) but sending a file is a different matter since there are so many file formats...
The entity cannot be constructed in a LINQ to Entities query
...difficult to track down and explain (things kind of work nicely before you start noticing missing data).
– Yakimych
Aug 17 '11 at 20:16
14
...
Making a UITableView scroll when text field is selected
... statusBarOrientation];
CGRect frame = self.myTableView.frame;
// Start animation
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:0.3f];
// Reduce size of the Table view
if (orientation == UIInter...
Undo a Git merge that hasn't been pushed yet
...s! I was able to roll back multiple commits by doing this multiple times, starting by reverting the most recent merge and working backwards. git diff showed me that I ended up in the state I wanted.
– Robert Sinton
May 6 '14 at 9:41
...
What does “DAMP not DRY” mean when talking about unit tests?
...When a test fails I want the reason to be obvious so the developer can get started on fixing the SUT that means I lean towards DAMP code in tests. Like most programming concepts it is always possible to take something too far. If your unit test code is so dry that it takes an extended time to dete...