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Python: changing value in a tuple
...t is better not to assume that the original poster is creating all of this from scratch doesn't know any better. More often we are dealing with output from another module or data source in a format or type that we cant control.
– rtphokie
Jan 6 '18 at 17:15
...
AttributeError: 'datetime' module has no attribute 'strptime'
... the strptime method. Or, you could change the import statement to this:
from datetime import datetime
and access it as you are.
The people who made the datetime module also named their class datetime:
#module class method
datetime.datetime.strptime(date, "%Y-%m-%d")
...
What does the @ symbol represent in objective-c?
...jects more efficient. (They become part of the method signature available from the runtime, which DO can look at to determine how to best serialize a transaction.) There are also the attributes within @property declarations, copy, retain, assign, readonly, readwrite, nonatomic, getter, and setter;...
How to use git bisect?
...ially since I've managed to find a good commit and I'm on that branch now. From this position this explanation is no help at all. How do I specify the bad branch without checking it out, for example
– PandaWood
Dec 2 '13 at 1:19
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Can't ignore UserInterfaceState.xcuserstate
...
Git is probably already tracking the file.
From the gitignore docs:
To stop tracking a file that is currently tracked, use git rm --cached.
Use this, replacing [project] and [username] with your info:
git rm --cached [project].xcodeproj/project.xcworkspace/xcus...
Dump Mongo Collection into JSON format
... If Mongo is located on a different host, here's an example from the Mongo doc mongoexport --host mongodb1.example.net --port 37017 --username user --password "pass" --collection contacts --db marketing --out mdb1-examplenet.json
– What Would Be Cool
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How to “warm-up” Entity Framework? When does it get “cold”?
... compile and that don't change. That way you move the performance overhead from runtime to compile time. Also this won't introduce any lag. But of course this change goes through to the database, so it's not so easy to deal with. Code is more flexible.
Do not use a lot of TPT inheritance (that's a ...
The apk must be signed with the same certificates as the previous version
...e.
How do I check which signing keys were used?
Gather the information from the APK
You can check which certificates the original APK and update APK were signed with by using these commands, using the Java keytool:
keytool -list -printcert -jarfile original.apk
keytool -list -printcert -jarfil...
Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
...e datatypes you have - namely, int and Integer. You're getting an Integer from valueOf on the right hand side, of course.
After the conversion, you're comparing two primitive int values. Comparison happens just as you would expect it to with respect to primitives, so you wind up comparing 128 and ...
Angular HttpPromise: difference between `success`/`error` methods and `then`'s arguments
...e 2 is that .then() call returns a promise (resolved with a value returned from a callback) while .success() is more traditional way of registering callbacks and doesn't return a promise.
Promise-based callbacks (.then()) make it easy to chain promises (do a call, interpret results and then do anot...