julienr

"""
This is a local proxy to intercept GDAL vsigs request (when storing data
on google cloud storage) and inject error codes to exercise the logging
codepath.

Usage:
    $ python vsi_proxy.py
    $ CPL_GS_ENDPOINT=http://localhost:9999/ gdal_translate -srcwin 5000 5000 2000 2000 /vsigs/mybucketfile.tif out.tit

"""

julienr

Fixing strange python sys.path in virtualenv

I had /usr/lib/python2.7/dist-packages in the sys.path of a no-global-site-packages venv

Good ref regarding python sys.path

http://mikeboers.com/blog/2014/05/23/where-does-the-sys-path-start

Find .pth files :

julienr

# This is running with python -m notebook.jstest notebook/save.js


Test group: notebook/save.js
Test file: notebook/tests/notebook/save.js                                      
step complete undefined
step complete undefined
remote message caught: Object {
  "readyState": 4,
  "responseText": "{\"reason\": null, \"message\": \"No such file or directory: has#hash and space and unic\\u00f8\\u2202e.ipynb\"}",

julienr

Useful commands to work on jupyter-notebook

Note that test are run on built js files, so you should run python setup.py build everytime you modify the notebook's js files.

Running a single js test

cd notebook/tests

python -m notebook.jstest notebook/attachments.js | less

julienr

##
import sys
import numpy as np
from vispy import scene
from vispy.color import Color
from vispy import gloo
from vispy.scene.cameras import TurntableCamera
import vispy.io
import vispy.geometry
import ply

julienr

"""
Code to parse sklearn classification_report
"""
##
import sys
import collections
##
def parse_classification_report(clfreport):
    """
    Parse a sklearn classification report into a dict keyed by class name

julienr

def date_from_timestamp_ms(timestamp_ms):
    date = datetime.utcfromtimestamp(timestamp_ms / 1000.0)
    return date


def format_date(timestamp_ms, sep=None):
    if sep is None:
        sep = '_'
    date = date_from_timestamp_ms(timestamp_ms)
    return date.strftime('%Y{0}%m{0}%d'.format(sep))

julienr

OSMESA_PATH=/opt/osmesa_llvmpipe
LDFLAGS+=`PKG_CONFIG_PATH=$(OSMESA_PATH)/lib/pkgconfig/ pkg-config --libs osmesa`
CFLAGS+=`PKG_CONFIG_PATH=$(OSMESA_PATH)/lib/pkgconfig/ pkg-config --cflags osmesa`
all:
	clang -o osmesa_test osmesa_test.cc $(LDFLAGS) $(CFLAGS) -lGLU

run:
	LD_LIBRARY_PATH=$(OSMESA_PATH)/lib ./osmesa_test

julienr

#include "android_png.h"

#include <android/asset_manager.h>
#include <png.h>

struct PNGImageData : public ImageData {
  PNGImageData(png_byte* pixels, int width, int height) {
    this->img_width = width;
    this->img_height = height;
    this->pixels = (uint8_t*)pixels;

julienr

import os
import errno

def mkdir_p(path):
    try:
        os.makedirs(path)
    except OSError as exc: # Python >2.5
        if exc.errno == errno.EEXIST:
            pass
        else: raise