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Is there a Python equivalent of the C# null-coalescing operator?
...cing operator.
In fact, it may even be useful to have this side-effect of Python. Since you know what values evaluates to false, you can use this to trigger the default value without using None specifically (an error object, for example).
In some languages this behavior is referred to as the Elvis...
Django migration strategy for renaming a model and relationship fields
... models.IntegerField()
is_ridonkulous = models.BooleanField()
Then
python manage.py makemigrations
python manage.py migrate
Step 2: (Like step 2-4 from Fiver)
Change the model name
class Bar(models.Model): # <-- changed model name
name = models.CharField(unique=True, max_length=...
Can you center a Button in RelativeLayout?
...orizontal="true"
Exactly like this, it works for me:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ff0000">
<Butto...
What is the difference between setUp() and setUpClass() in Python unittest?
What is the difference between setUp() and setUpClass() in the Python unittest framework? Why would setup be handled in one method over the other?
...
Get raw POST body in Python Flask regardless of Content-Type header
...
This seems to break when using raven-python (Sentry), bug and workarounds here: github.com/getsentry/raven-python/issues/457
– dequis
Mar 17 '16 at 19:34
...
How do I get monitor resolution in Python?
...trics(1))
If you are working with high resolution screen, make sure your python interpreter is HIGHDPIAWARE.
Based on this post.
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How to customize the back button on ActionBar
...or the pre-v11 devices.
Copy and paste the follow code in the file styles.xml of the default values folder.
<resources>
<style name="MyCustomTheme" parent="Theme.Sherlock.Light">
<item name="homeAsUpIndicator">@drawable/ic_home_up</item>
</style>
</reso...
pg_config executable not found
...
Have you installed python-dev?
If you already have, try also installing libpq-dev
sudo apt-get install libpq-dev python-dev
From the article: How to install psycopg2 under virtualenv
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Test if a variable is a list or tuple
In python, what's the best way to test if a variable contains a list or a tuple? (ie. a collection)
13 Answers
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Importing a CSV file into a sqlite3 database table using Python
...SV file and I want to bulk-import this file into my sqlite3 database using Python. the command is ".import .....". but it seems that it cannot work like this. Can anyone give me an example of how to do it in sqlite3? I am using windows just in case.
Thanks
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