import function from a file in the same folder
Have you tried import app.config as Config It did the trick for me.
python-3.x
context in nested serializers django rest framework
Ok i found a working solution. I replaced the ChildSerializer assignment in the Parent class with a SerializerMethodField which adds the context. This is then passed to the get_fields method in my CustomModelSerializer: class ChildSerializer(CustomModelSerializer): class Meta: fields = (‘c_name’, ) model = Child class ParentSerializer(CustomModelSerializer): child = serializers.SerializerMethodField(‘get_child_serializer’) class Meta: model = Parent fields … Read more
Correct Use Of Global Variables In Python 3
In the first case the global keyword is pointless, so that is not correct. Defining a variable on the module level makes it a global variable, you don’t need the global keyword. The second example is correct usage. However, the most common usage for global variables are without using the global keyword anywhere. The global … Read more
Converting string to tuple without splitting characters
You can just do (a,). No need to use a function. (Note that the comma is necessary.) Essentially, tuple(a) means to make a tuple of the contents of a, not a tuple consisting of just a itself. The “contents” of a string (what you get when you iterate over it) are its characters, which is … Read more
Namespace vs regular package
Namespace packages As of Python 3.3, we get namespace packages. These are a special kind of package that allows you to unify two packages with the same name at different points on your Python-path. For example, consider path1 and path2 as separate entries on your Python-path: path1 +–namespace +–module1.py +–module2.py path2 +–namespace +–module3.py +–module4.py with … Read more
How to combine Celery with asyncio?
EDIT: 01/12/2021 previous answer (find it at the bottom) didn’t age well therefore I added a combination of possible solutions that may satisfy those who still look on how to co-use asyncio and Celery Lets quickly break up the use cases first (more in-depth analysis here: asyncio and coroutines vs task queues): If the task … Read more
Execute Python script within Jupyter notebook using a specific virtualenv
Here’s what worked for me (non conda python): (MacOS, brew version of python. if you are working with system python, you may (will) need prepend each command with sudo) First activate virtualenv. If starting afresh then, e.g., you could use virtualenvwrapper: $ pip install virtualenvwrapper $ mkvirtualenv -p python2 py2env $ workon py2env # This … Read more
how to add a coroutine to a running asyncio loop?
To add a function to an already running event loop you can use: asyncio.ensure_future(my_coro()) In my case I was using multithreading (threading) alongside asyncio and wanted to add a task to the event loop that was already running. For anyone else in the same situation, be sure to explicitly state the event loop (as one … Read more
Debugging Numpy VisibleDeprecationWarning (ndarray from ragged nested sequences)
With a function that creates a ragged array: In [60]: def foo(): …: print(‘one’) …: x = np.array([[1],[1,2]]) …: return x …: In [61]: foo() one /usr/local/bin/ipython3:3: VisibleDeprecationWarning: Creating an ndarray from ragged nested sequences (which is a list-or-tuple of lists-or-tuples-or ndarrays with different lengths or shapes) is deprecated. If you meant to do this, … Read more
Subprocess check_output returned non-zero exit status 1
The command yum that you launch was executed properly. It returns a non zero status which means that an error occured during the processing of the command. You probably want to add some argument to your yum command to fix that. Your code could show this error this way: import subprocess try: subprocess.check_output(“dir /f”,shell=True,stderr=subprocess.STDOUT) except … Read more