I want to deploy my python application to my customers. Well, I basically don't know much about python application deployment, but my requirements/questions are
1) The user can install it as long as they can access internet. For mac applications, they are all hosted by apple app store. For chrome extensions, they are hosted by google. My question is, if there's a similar place that are hosting python applications, and it provides updating mechanism? If I have to do it on my own, is there any existing framework stuff for me to do it?
2) My application would be used to read USB device, and act as a http server. I want the install package to be as small as possible, and I also need to package python runtime. What is the package size that I should be expecting? 5M? 10M?
I have sucesfully used pyinstaller for my project
https://github.com/pyinstaller/pyinstaller/wiki
My application is reasonably large, so the installer package is around 100MB which compresses to 60MB. A lot of that is numpy, qt, scipy, and matplotlib.
We use a script to invoke pyinstaller which packages our main script and dependencies into a .app file. https://github.com/Erotemic/ibeis/blob/next/installers.py
If you are installing on a mac, this script in my repo will take a pyinstaller package and bundle it into a dmg.
https://github.com/Erotemic/ibeis/blob/next/_scripts/mac_dmg_builder.sh
If you host your program on your own server you can integrate an auto-update mechanism, but I don't know how to do that exactly. I just host my installers on dropbox.
Related
I want to develop a Windows/macOS app on my Windows machine, I aim to upload the executable file and upload it on the internet so that people with macOS can run it just like on windows.
Is that possible?
I tried searching on this topic on the internet and didn't get satisfying results.
I know that iOS prohibits installation of apps from unknown sources unless you use your phone for development or jailbreak the phone. So the question was actually if the same is applied to macOS. I know I can build apps and make executable files, one for each platform. I searched the web for a long time until I found the answer, that yes, I can just make a script and run it on macOS without any complications.
I have a python application that I've created an executable of, using pyinstaller. The entire python interpreter is packaged into the executable with all its pip dependencies.
So now my application can run in environments where python or python modules may not be installed, but there are still some dependencies:
1) MongoDB - This is the database my application uses, and it needs to be installed on a system for it to work of course.
2) Mosquitto - This service is required because the application uses MQTT to receive/send commands.
My current method of handling this is to use a shell script which installs mongodb and mosquitto the first time when my application is deployed somewhere. I just discovered docker, and I was wondering if it is capable of packaging these 'external' dependencies into a docker image?
Is it possible for me to have one standalone "thing" which will run in any environment regardless of whether mongoDB or mosquitto are installed there?
And how exactly would I go about doing this?
(Unrelated but this application is meant to run on a raspberry pi)
If you adopted Docker here:
You'd still have to "separately" run the external services; they couldn't be packaged into a single artifact per se. There's a standard tool called Docker Compose that provides this capability, though, and you'd generally distribute a docker-compose.yml file that describes how to run the set of related containers.
It's unusual to distribute a Docker image as files; instead you'd push your built image to a registry (like Docker Hub, but the major public-cloud providers offer this as a hosted service, there are a couple of independent services, or you can run your own). Docker can then retrieve the image via HTTP.
Docker containers can only be run by root-equivalent users. Since you're talking about installing databases as part of your bringup process this probably isn't a concern for you, but you could run a plain-Python or pyinstallered application as an ordinary user. Anyone who can run any Docker command has unrestricted root-level access on the host.
I have a meteor project that includes python scripts in our private folder of our project. We can easily run them from meteor using exec, we just don't know how to install python modules on our galaxy server that is hosting our app. It works fine running the scripts on our localhost since the modules are installed on our computers, but it appears galaxy doesn't offer a command line or anything to install these modules. We tried creating our own command line by calling exec commands on the meteor server, but it was unable to find any modules. For example when we tried to install pip, the server logged "Unable to find pip".
Basically we can run the python scripts, but since they rely on modules, galaxy throws errors and we aren't sure how to install those modules. Any ideas?
Thanks!
It really depends on how horrible you want to be :)
No matter what, you'll need a well-specified requirements.txt or setup.py. Once you can confirm your scripts can run on something other than a development machine, perhaps by using a virtualenv, you have a few options:
I would recommend hosting your Python scripts as their own independent app. This sounds horrible, but in reality, with Flask, you can basically make them executable over the Internet with very, very little IT. Indeed, Flask is supported as a first-class citizen in Google App Engine.
Alternatively, you can poke at what version of Linux the Meteor containers are running and ship a binary built with PyInstaller in your private directory.
I am creating a Python application that uses multiple third party libraries. Since the libraries are installed on my computer, the script runs fine. However, how can I alter my script so that it will run on any computer (all major OS), even if the computer does not have the third party Python libraries installed?
By your comment:
I want the script to stay a python script if at all possible so that
it can be run on any device and run through a webpage
It appears you want some way to host a python program online.
To do this, you need:
To know how to write Python that serves a website (see Django, Flask, CherryPy, etc...)
Some way to deploy said application to the web. An easy, free (<-- this is the keyword) way to deploy Python web apps is through using Heroku or some other free hosting site. Or you could always pay for hosting or host it yourself.
I have a server that I'd like to use to maintain persistent connections with a set of devices, just so that they can pass simple messages back and forth. It's a trivial task, but selecting a server-side platform has been suprrisingly difficult (especially since I have no administrative privileges - it's a dedicated commercial server).
My best idea so far is to write a TCP server in Python. The Twisted platform seems suitable for the task, and has a lot of good reviews. However, my server has Python 2.7 but not Twisted, and the admins have been reluctant to install it for me.
Is there any way that I can just upload a Twisted package to the server and reference it in my libraries without installing it as a framework?
I'm not sure what you mean by "installing it as a framework". If you are using an OS X server hosting environment, then maybe you're talking about Framework with a Capital F. However, OS X server hosting isn't a very common environment so I'm guessing that's not it.
If you just want to know how to install a Python library in your home directory, then the general answer is:
$ python setup.py install --user
This Just Works™ on Python 2.7 (assuming the package uses distutils, which Twisted does, and you unpack the source .tar.gz and change your working directory to the directory that is the root of the contents of that .tar.gz), so you should be done after that.
Use virtualenv to create your private Python libraries installation.