On 01/11/2017 06:54, Wes Turner wrote:
Suggestions to help to minimize unnecessary logged bandwidth use and even work with a closed loop LAN:
This reads from the filesystem:
import requests
This would read from the PyPi service over the network bandwidth:
#!pip install -U requests #%run pip install -U requests
#pip('install -U requests')
This doesn't work because you SHOULD restart the interpreter after running pip (because imports are cached):
import requests !pip install -U requests import requests
Some tips on running educational environments for beginners (optionally in a lab):
<Snipped a lot of good stuff> One tip that I have used when teaching python in a closed, (sometimes internet free environment), was to pre-prepare by, in an on-line environment: 1. Create a virtual environment with the version of Python that I am going to be teaching on the target platform 2. Activate that environment 3. Ensure that I am On-line 4. Download the pip install packages that I know I will need by using `pip download` to download but not install the packages, ideally using the -r requirements.txt syntax, (plus any windows specific builds from Christoph Gohlke's site). 5. Go Off-line and run pip install with the downloaded package - if I hit any errors due to packages having unspecified dependencies add those to the requirements list and repeat from 3. (While I am at it I often log an issue with the package maintainer). 6. A fast, personal, run through my lesson plan to ensure that I haven't missed anything. I normally also download a few goodies that might not be essential to the lesson but that can act as a teaser for the more interested students. At the start of the first lesson I give the students the downloaded packages directory, usually on a USB key, and get them to pip install them while explaining the difference between local and on-line installation. I know that I could save having to get the students to run pip by packaging up the virtual environment as a portable, or using by pyInstaller, but having them run pip on the local downloads gives me a chance to explain how to do it in the wild. BTW while Docker is great for this it is a whole other learning experience, (plus getting it running with some corporate security & anti-virus can be quite a challenge). These USB keys are often re-used by other co-workers as a getting started or after my computer got changed/re-imaged starting point. -- Steve (Gadget) Barnes Any opinions in this message are my personal opinions and do not reflect those of my employer. --- This email has been checked for viruses by AVG. http://www.avg.com