Re: How should learning to program in Python be approached, if learning objectives are sought to be customised?
Hello Rajib, that's alright) Yes, PyCharm can be installed on Debian: https://www.jetbrains.com/pycharm/download/#section=linux Good luck! On 30/08/2021 16:06, Susmita/Rajib wrote: Thank you, Mr. Pokoradi, for your informative reply. I use either Knoppix or Debian. So everything is pre-installed. I don't know about pydev in Eclipse. So thank you for this bit of information. I am not sure if PyChem could be installed in my system. In Debian. So please advise, I am not a book person. I say they talk a lot and deliver very little. Tire me. I would rather like tough programs than beginners' programs that provide insights, while running on the system. Is there something similar to GDB (or DDD)? Thank you for your reply. Best. Rajib
Re: How should learning to program in Python be approached, if learning objectives are sought to be customised?
Hi Rajib, I’d recommend “Python crash course” by Eric Mathes, if you like learning using books. Gives good explanation of the basics, lists a few sample projects, all code is available on GitHub. I find the best beginner friendly tutorials on particular tasks/packages are the ones by Corey Schafer on YouTube. Eclipse actually has a very good extension for Python called Pydev, so you might try that once you’re familiar with the interface, however PyCharm is a great choice too. One personal recommendation is that before starting pip installing Python packages on your machine directly, go through virtual environments and start using them, it will save you from a lot of issues should you need to use different versions of a package or even Python (eg 2.7 vs 3.8). I hope you find this helpful and the best of luck with your Python journey! Balazs Отправлено с iPhone > 27 авг. 2021 г., в 5:49, Susmita/Rajib написал(а): > > My dear Illustrious List Maintainers, Programmers and Senior members, > > I have been on and off my idea to self-learn Python programming. > > I learnt a little bit of Java programming, aided by the Eclipse IDE > and Oracle Java repository, which has exhaustive example codes and > object library resources, references, explanations, et al. > > To me Python appeared to lack these resources. > > Of late, I have been browsing the website, askpython.com, which said > that the same facility is available in Python too. The page, > https://www.askpython.com/python-programming, in particular says > about an IDE: "... PyCharm from JetBrains is the most popular Python > IDE. It has a Community Edition, which is free and open source ..." > > I recently modified a "word frequency counting for a text file" script > to have the output redirected on to another text file rather than > printing the result on the console, and I must say that the > programming is very simple and elegant. > > So now that I am enthused, could I please be given a little more > guidance on the following aspects please?: > (1) exhaustive example codes > (2) object library resources, references, explanations, et al > (3) PyCharm from JetBrains > and any information that is thought relevant. > > My regards and best wishes. > Rajib Bandopadhyay > An Open Source enthusiast >
Re: How to install older python version on Debian
Hello, I’d suggest you build it from source (python.org/ftp... with the needed version) as an additional python version, and then create your venv using the 3.6. You can dm me if you might need more details. Best regards, Balazs Отправлено с iPhone > 26 марта 2021 г., в 7:14, Andrey Rahmatullin написал(а): > >> On Fri, Mar 26, 2021 at 09:55:03AM +0800, Robbi Nespu wrote: >> Dear Debian Python, >> >> I would like to install older python (version 3.6) on my venv environment >> >> $ inxi -S >> System:Host: debian Kernel: 5.10.0-4-amd64 x86_64 bits: 64 Desktop: KDE >> Plasma 5.20.5 >> Distro: Debian GNU/Linux bullseye/sid >> >> (venv)$ python --version >> Python 3.9.2 >> >> on fedora I can easily do something like this[1], > This only works as long as the version you need is in the repo. It's > expected that a 2019 distro with 3.7 as the default may also include 3.6, > which is somewhat different from what you expect here. > >> If my guest are right. Could you suggest me a solution how to have multiple >> python version so I can load inside venv? > Build it manually and install it somewhere in your user directory or use > pyenv. > > -- > WBR, wRAR
Re: Need a Python 3.8 virtual environment
Hi Steven, i tested in a freshly installed virtualbox machine and was able to create a virtual environment, using the following steps: built python3.8.7 form tarball (|https://www.python.org/ftp/python/3.8.7/Python-3.8.7.tar.xz)| ran python3.8 -m venv test387 and then could activate it. I hope this helps, Balazs On 03/03/2021 03:17, Steven Robbins wrote: Hi, I'm trying to use a (non-Debian) python system built on python 3.8. Debian's default is currently 3.9 so I am advised to use a virtual environment. Being a newbie, I searched around and found a writeup covering several different virtualization tools [1]. Note I am using Debian 'sid'. I can use the tool "virtualenv" to create a virtual environment for default python: steve@riemann:/tmp$ virtualenv blah created virtual environment CPython3.9.1.final.0-64 in 77ms creator CPython3Posix(dest=/tmp/blah, clear=False, no_vcs_ignore=False, global=False) seeder FromAppData(download=False, pip=bundle, setuptools=bundle, wheel=bundle, via=copy, app_data_dir=/home/steve/.local/share/virtualenv) added seed packages: pip==20.1.1, pkg_resources==0.0.0, setuptools==44.0.0, wheel==0.34.2 activators BashActivator,CShellActivator,FishActivator,PowerShellActivator,PythonActivator,XonshActivator But not for python 3.8: steve@riemann:/tmp$ virtualenv -p python3.8 blah38 RuntimeError: failed to find interpreter for Builtin discover of python_spec='python3.8' I have installed literally all the Debian python packages whose name contains 'python3.8'. A very short list: ii libpython3.8:amd643.8.7-1 amd64Shared Python runtime library (version 3.8) ii libpython3.8-dev:amd643.8.7-1 amd64Header files and a static library for Python (v3.8) ii libpython3.8-minimal:amd643.8.7-1 amd64Minimal subset of the Python language (version 3.8) ii libpython3.8-stdlib:amd64 3.8.7-1 amd64Interactive high-level object-oriented language (standard library, version 3.8) ii python3.8 3.8.7-1 amd64Interactive high-level object-oriented language (version 3.8) ii python3.8-dev 3.8.7-1 amd64Header files and a static library for Python (v3.8) ii python3.8-minimal I have also tried the module 'venv': steve@riemann:/tmp$ python3.8 -m venv v38 The virtual environment was not created successfully because ensurepip is not available. On Debian/Ubuntu systems, you need to install the python3-venv package using the following command. apt-get install python3-venv You may need to use sudo with that command. After installing the python3-venv package, recreate your virtual environment. Failing command: ['/tmp/v38/bin/python3.8', '-Im', 'ensurepip', '--upgrade', '--default-pip'] steve@riemann:/tmp$ python3.8 -m venv blah38 The virtual environment was not created successfully because ensurepip is not available. On Debian/Ubuntu systems, you need to install the python3-venv package using the following command. apt-get install python3-venv You may need to use sudo with that command. After installing the python3-venv package, recreate your virtual environment. Failing command: ['/tmp/blah38/bin/python3.8', '-Im', 'ensurepip', '-- upgrade', '--default-pip'] Note that I do have 'python3-venv' installed, but it is the 3.9 version: ii python3-venv 3.9.1-1 amd64pyvenv-3 binary for python3 (default python3 version) Is there something I've missed? Thank you, -Steve [1] https://linuxconfig.org/how-to-set-up-a-python-virtual-environment-on-debian-10-buster
