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How to migrate back from initial migration in Django 1.7?
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You can do the same with Django 1.7+ also:
python manage.py migrate <app> zero
This clears <app> from migration history and drops all tables of <app>
See django docs for more info.
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Understand homebrew and keg-only dependencies
...nssl version, it always shows the one from os (LibreSSL) but when I run my python in interactive mode, it is actually using openssl. Can you help me understand how python picked up the correct openssl? @echristopherson
– Alex
Apr 29 at 22:58
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How do I check if a C++ std::string starts with a certain string, and convert a substring to an int?
How do I implement the following (Python pseudocode) in C++?
21 Answers
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How do I know if a generator is empty from the start?
...d me a lot with my current project. I found a similar example in code for python's standard library module 'mailbox.py'. This method is for backward compatibility only. def next(self): """Return the next message in a one-time iteration.""" if not hasattr(self, '_onetime_keys'):...
What is the difference between shallow copy, deepcopy and normal assignment operation?
...jects, there is no need for copying because the data will never change, so Python uses the same data; ids are always the same. For mutable objects, since they can potentially change, [shallow] copy creates a new object.
Deep copy is related to nested structures. If you have list of lists, then deep...
How to schedule a function to run every hour on Flask?
...ich I made recently, integrated with a basic Flask application:
#!/usr/bin/python3
""" Demonstrating Flask, using APScheduler. """
from apscheduler.schedulers.background import BackgroundScheduler
from flask import Flask
def sensor():
""" Function for test purposes. """
print("Scheduler is...
C++ multiline string literal
...ring literals. Sort of like here-text in shells and script languages like Python and Perl and Ruby.
const char * vogon_poem = R"V0G0N(
O freddled gruntbuggly thy micturations are to me
As plured gabbleblochits on a lurgid bee.
Groop, I implore thee my fo...
Django: How do I add arbitrary html attributes to input fields on a form?
...ere is no separation of concerns. HTML attributes should not be written in python code IMO. Mikhail Korobov solution is superior.
– David D.
Dec 16 '17 at 15:14
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How can I see normal print output created during pytest run?
...rty py.test plugin (...that I know of, anyway) supports teeing – despite Python trivially supporting teeing out-of-the-box.
Monkey-patching py.test to do anything unsupported is non-trivial. Why? Because:
Most py.test functionality is locked behind a private _pytest package not intended to be e...
Changing the “tick frequency” on x or y axis in matplotlib?
I am trying to fix how python plots my data.
11 Answers
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