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How to step through Python code to help debug issues?
...tack frame
p: to print the value of an expression in the current context
If you don't want to use a command line debugger, some IDEs like Pydev, Wing IDE or PyCharm have a GUI debugger. Wing and PyCharm are commercial products, but Wing has a free "Personal" edition, and PyCharm has a free communi...
See :hover state in Chrome Developer Tools
...
Now you can see both the pseudo-class rules and force them on elements.
To see the rules like :hover in the Styles pane click the small :hov text in the top right.
To force an element into :hover state, right click it an...
What is the difference between join and merge in Pandas?
...n on. That makes sense to me sort of. I can accept that the semantics are different. But I'd like to know if I can get that same behavior with df.join
– munk
Mar 27 '14 at 0:59
...
MySQL: What's the difference between float and double?
... checked the mysql documentation, but honestly didn't understand what the difference is.
6 Answers
...
How would Git handle a SHA-1 collision on a blob?
...The question of using SHA-256 is regularly mentioned, but not act upon for now (2012).
Note: starting 2018 and Git 2.19, the code is being refactored to use SHA-256.
Note (Humor): you can force a commit to a particular SHA1 prefix, with the project gitbrute from Brad Fitzpatrick (bradfitz).
g...
SignalR - Sending a message to a specific user using (IUserIdProvider) *NEW 2.0.0*
...Provider
Lets assume our application uses a userId to identify each user. Now, we need to send message to a specific user. We have userId and message, but SignalR must also know the mapping between our userId and the connection.
To achieve this, first we need to create a new class which implements...
Spring Test & Security: How to mock authentication?
...t(
basicActiveUser, managerActiveUser
));
}
}
Now we have our users ready, so imagine we want to test the access control to this controller function:
@RestController
@RequestMapping("/foo")
public class FooController {
@Secured("ROLE_MANAGER")
@GetMapping("/salu...
Ignoring an already checked-in directory's contents?
...n several projects. They are all in one directory without sub-directories. Now I just created a script to copy these assets over from another, structured directory, with several levels of sub-directories.
...
LINQ Select Distinct with Anonymous Types
...es on the type to compute an
object's hash code and test for
equality. If two objects of the same
anonymous type have all the same
values for their properties – the
objects are equal.
So it's totally safe to use the Distinct() method on a query that returns anonymous types.
...
How to fix Git error: object file is empty?
...- a/tex/MCMC-in-IRT.tex
+++ b/tex/MCMC-in-IRT.tex
It worked!
Step 8: So now we need to point HEAD to 9f0abf890b113a287e10d56b66dbab66adc1662d.
nathanvan@nathanvan-N61Jq:~/workspace/mcmc-chapter$ git update-ref HEAD 9f0abf890b113a287e10d56b66dbab66adc1662d
Which didn't complain.
Step 9: See w...