Jupyter

Customized URL

The default location for this file jupyter_notebook_config.py is in your Jupyter folder in your home directory, ~/.jupyter

import os
from IPython.lib import passwd

c.NotebookApp.ip = '*'
c.NotebookApp.port = int(os.getenv('PORT', 8888))
c.NotebookApp.open_browser = False
c.MultiKernelManager.default_kernel_name = 'python2'
c.NotebookApp.base_url = '/tf/'

# sets a password if PASSWORD is set in the environment
if 'PASSWORD' in os.environ:
  c.NotebookApp.password = passwd(os.environ['PASSWORD'])
  del os.environ['PASSWORD']

Show package list

import pip
installed_packages = pip.get_installed_distributions()
installed_packages_list = sorted(["%s==%s" % (i.key, i.version) for i in installed_packages])
print(installed_packages_list)

Get Image Size

from PIL import Image

s = []
for f in imgfiles:
    with Image.open(join(image_src_path, f)) as img:
        width, height = img.size
        s.append("%sx%s" % (width, height))

List files in a directory

from os import listdir
from os.path import isfile, join

image_src_path = '/notebooks/dataset/Challenger.ai/scene/ai_challenger_scene_train_20170904/scene_train_images_20170904'
image_dst_path = '/notebooks/dataset/Challenger.ai/scene/ai_challenger_scene_train_20170904/scene_train_images_20170904'

imgfiles = [f for f in listdir(image_src_path) if isfile(join(image_src_path, f))]