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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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What is the difference between SIGSTOP and SIGTSTP?
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Factoid: If you're a linux programmer, SIGTSTP is what you get when you use Ctrl-Z to interrupt a process running in a shell without killing it. This usually causes the shell to put it on a suspended job list.
– simpleuser
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Build .so file from .c file using gcc command line
I'm trying to create a hello world project for Linux dynamic libraries (.so files). So I have a file hello.c:
2 Answers
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npm throws error without sudo
...ssions, install npm packages globally the right way.
If you are on OSX or Linux, you can create a user dedicated directory for your global package and setup npm and node to know how to find globally installed packages.
Check out this great article for step by step instructions on installing npm mod...
What is the difference between quiet NaN and signaling NaN?
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We can also execute the program on aarch64 with QEMU user mode:
aarch64-linux-gnu-g++ -ggdb3 -O3 -std=c++11 -Wall -Wextra -pedantic -o main.out main.cpp
qemu-aarch64 -L /usr/aarch64-linux-gnu/ main.out
and that produces the exact same output, suggesting that multiple archs closely implement IEE...
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 vmalloc and kmalloc?
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Short answer: download Linux Device Drivers and read the chapter on memory management.
Seriously, there are a lot of subtle issues related to kernel memory management that you need to understand - I spend a lot of my time debugging problems with i...
Get all git commits since last tag
...rev^=0') do @set latesttag=%a
git log %latesttag%..HEAD --oneline
and on linux / git bash / windows bash
git log $(git describe --tags --abbrev=0)..HEAD --oneline
Also, if you have a case where you know a tag in history and want to print everything from that tag up to current situation, you mig...