eric-wieser

import numpy as np

def _html_repr_helper(contents, index=()):
    dims_left = contents.ndim - len(index)
    if dims_left == 0:
        s = contents[index]
    else:
        s = ''.join(_html_repr_helper(contents, index + (i,)) for i in range(contents.shape[len(index)]))

    return "<div class='numpy-array-ndim-{} numpy-array-ndim-m{}' title='[{}]'>{}</div>".format(

eric-wieser

from collections import MutableSequence
import sys

import numpy as np

class NumpyList(MutableSequence):
    """
    An implementation of an arraylist, that reallocates whenever an append
    would not fit within the existing allocation
    In the interest of preventing memory leaks, the array is resized in place,

eric-wieser

import numpy as np
from field_info import field_info

dt = np.dtype([('time', [('subtime', np.int32, (30,20))], 200), ('value', np.float32, (10,2))])

assert field_info(dt)['time'].offset == 0
assert field_info(dt)['time'][1].offset == 30 * 20 * 4
# etc

eric-wieser

#! python3

def first_then(first, then):
	yield first
	while True:
		yield then

prefix_one = lambda: first_then('━━', '  ')
prefix_many_first = lambda: first_then('┳━', '┃ ')
prefix_many_rest = lambda: first_then('┣━', '┃ ')

eric-wieser

import asyncio

class FuturePipe:
    """
    An async iterable that can be consumed from one end, and inserted from the other:


    >>> fp = FuturePipe()

    >>> async def put_things():

eric-wieser

eric-wieser

A tiny script to open a pair of web calendars for your course choices

1. Visit http://www3.eng.cam.ac.uk/comet/student/y4/module_selection/index.html
2. Open the web inspector (F12 usually), paste the code below into the javascript console, and hit enter
3. Two windows should appear, one for each of lent and michaelmas. With any luck, these will open your calendar program, and ask you to add the calendars!

eric-wieser

%YAML 1.2
---
name: ROS message definition
file_extensions: [msg]
scope: source.rosmsg

contexts:
  main:
    - match: \#.*$
      scope: comment.line.rosmsg

eric-wieser

"""Translated to python by Eric Wieser. Use with caution - untested"""
import numpy as np

def bin2gray(x):
    return x ^ (x >> 1)

def gray2bin(x):
    out = x
    mask = x >> 1
    while np.any(mask != 0):

eric-wieser

Use bookmarklet.js to get files in and out of the browser, and convert.py to convert them into separate files per module

Downloading

1. hit F12 to get the console and paste in the code below
2. Click the download button that appeared on the toolbar (the cloud icon)
3. (optional) drag the result onto convert.py to separate the modules

Uploading

1. hit F12 to get the console and paste in the code below
2. (optional) after making changes to the separated modules, drag the folder back onto convert.py