In python, you have floats and decimals that can be rounded. If you care about the accuracy of rounding, use decimal type. If you use floats, you will have issues with accuracy.
All the examples use demical types, except for the original value, which is automatically casted as a float.
To set the context of what we are working with, let's start with an original value.
These are my notes basically. At first i created this gist just as a reminder for myself. But feel free to use this for your project as a starting point. If you have questions you can find me on twitter @thomasf https://twitter.com/thomasf This is how i used it on a Debian Wheezy testing (https://www.debian.org/releases/testing/)
Discuss, ask questions, etc. here https://news.ycombinator.com/item?id=7445545
| from sqlalchemy import create_engine, Table, Column, Integer, Unicode, MetaData, String, Text, update, and_, select, func, types | |
| # create engine, reflect existing columns, and create table object for oldTable | |
| srcEngine = create_engine('mysql+mysqldb://username:[email protected]/database') # change this for your source database | |
| srcEngine._metadata = MetaData(bind=srcEngine) | |
| srcEngine._metadata.reflect(srcEngine) # get columns from existing table | |
| srcTable = Table('oldTable', srcEngine._metadata) | |
| # create engine and table object for newTable | |
| destEngine = create_engine('mysql+mysqldb://username:password@localhost/database') # change this for your destination database |
This presents some possible improvements for scrapy contracts. They can be potentially all implemented, but curious which are good/bad ideas. All of them could potentially break existing custom contracts.
... or multiple contracts which generate requests in general
def parse_response(self, response):
"""
@url http://example.org/foo
Inspired by dannyfritz/commit-message-emoji
See also gitmoji.
| Commit type | Emoji |
|---|---|
| Initial commit | 🎉 :tada: |
| Version tag | 🔖 :bookmark: |
| New feature | ✨ :sparkles: |
| Bugfix | 🐛 :bug: |
Here are the simple steps needed to create a deployment from your local GIT repository to a server based on this in-depth tutorial.
You are developing in a working-copy on your local machine, lets say on the master branch. Most of the time, people would push code to a remote server like github.com or gitlab.com and pull or export it to a production server. Or you use a service like deepl.io to act upon a Web-Hook that's triggered that service.
A collection of links to the excellent "Composing Software" series of medium stories by Eric Elliott.
Edit: I see that each post in the series now has index, previous and next links. However, they don't follow a linear flow through all the articles with some pointing back to previous posts effectively locking you in a loop.
A collection of links to the excellent "Composing Software" series of medium stories by Eric Elliott.
