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from flask import Flask, render_template
from flask.ext.wtf import Form, widgets, SelectMultipleField

SECRET_KEY = 'development'

app = Flask(__name__)
app.config.from_object(__name__)

class MultiCheckboxField(SelectMultipleField):
    widget = widgets.ListWidget(prefix_label=False)

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<form method="post">
    {{ form.hidden_tag() }}
    {{ form.example }}
    <input type="submit">
</form>

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Helpful info on finding a dev related job in and around Chattanooga

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# For loop that handles if an item is None instead of having
# items in a list.

# this is a sqlalchemy query, it will either return a list of people with 
# the first_name of 'Justin' or if there is no person with that first name
# it will return None. This is just an example of when a variable might be 
# a list with list items or None.
# people = Person.query.filter_by(first_name='Justin'.all()

# I'm specifically setting people to None here because I'm not calling the sqlalchemy query above.

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How to copy SSH keys to another machine?

Public key authentication is generally safer than password-based and is way more convenient.

SSH offers a command to set it up, ssh-copy-id (part of the openssh client package) will copy your public key to the remote machine. Use it like this:

ssh-copy-id -i ~/.ssh/my_key.pub remote-machine

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Find PI to the Nth Digit - Enter a number and have the program generate PI up to that many decimal places. Keep a limit to how far the program will go.

Mortgage Calculator - Calculate the monthly payments of a fixed term mortgage over given Nth terms at a given interest rate. Also figure out how long it will take the user to pay back the loan. For added complexity, add an option for users to select the compounding interval (Monthly, Weekly, Daily, Continually).

Change Return Program - The user enters a cost and then the amount of money given. The program will figure out the change and the number of quarters, dimes, nickels, pennies needed for the change.

Calculator - A simple calculator to do basic operators. Make it a scientific calculator for added complexity.

Unit Converter (temp, currency, volume, mass and more) - Converts various units between one another. The user enters the type of unit being entered, the type of unit they want to convert to and then the value. The program will

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How to update a GitHub forked repository?

So you hit "Fork" and now you have this repo copy on your Github account. Here is what to do to keep it up-to-date with the original repo.

1. Add the original repo as remote, here called upstream:

git remote add upstream https://github.com/author/repo.git

2. Fetch all the branches of that upstream remote:

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Importing and exporting CSV files with PostgreSQL

Let’s see how to use PostgreSQL to import and export CSV files painlessly with the COPY command.

Import CSV into table t_words:

COPY t_words FROM '/path/to/file.csv' DELIMITER ',' CSV;

You can tell quote char with QUOTE and change delimiter with DELIMITER.

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
excel_things.py

Created by Stephan Hügel on 2011-05-07

Read XLS or CSV files, and return contents as unicode strings in nested lists
One row per list item, one column per nested list item:
[[u'foo', u'bar'], [u'baz', u'abc123'], … ]

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Application structure

General

1. Application has tree structure with folders for each "feature"
2. Feature folders are named with lowerCamelCase → myComponentDashboard
3. Feature can contain any number of components and nested features
4. Components are named using UpperCamelCase → MyWidgetComponent.vue
5. Component can have translation .yml file named correspondingly → MyWidgetComponent.yml
6. If component requires more than 2 files: .vue and .yml file - folder is created with the same name → MyWidgetComponent