I'd be jumping out the top storey window after about 2 minutes of being required to use Python as a shell.
Python is a full-on programming language. Its REPL is a REPL for that language. Interacting with the OS and filesystem is a niche, tucked away in a corner of the language.
It has has none of the ergonomic affordances needed to be the user interface for interacting with files and processes.
Here are some simple commands:
ls
cd foo
ls
rm bar
cd ../baz
rm bar
echo >readme.txt baz directory
curl -s http://example.com >download
Let's try doing that with python:
python
>>> ls
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'ls' is not defined
>>> import system
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'system'
>>> import os
>>> os.dir.list()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: module 'os' has no attribute 'dir'
>>> help(os)
>>> os.listdir()
['foo', 'bar', 'baz']
>>> cd foo
File "<stdin>", line 1
cd foo
^
SyntaxError: invalid syntax
>>> chdir("foo")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'chdir' is not defined
>>> os.chdir("foo")
>>> os.listdir()
['bar']
>>> os.delete("bar")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: module 'os' has no attribute 'delete'
>>> os.remove("bar")
>>> os.chdir("../baz")
>>> os.remove("bar")
>>> f = open("readme.txt", "w")
>>> f.write("baz directory")
13
>>> f.close()
>>> import process
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'process'
>>> import subprocess
>>> subprocess.run("curl", "-s", "http://example.com/")
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.9/subprocess.py", line 505, in run
with Popen(*popenargs, **kwargs) as process:
File "/usr/lib/python3.9/subprocess.py", line 778, in __init__
raise TypeError("bufsize must be an integer")
TypeError: bufsize must be an integer
>>> subprocess.run(["curl", "-s", "http://example.com/"])
...
CompletedProcess(args=['curl', '-s', 'http://example.com/'], returncode=0)
>>> subprocess.run(args=["curl", "-s", "http://example.com/"], capture_output=True)
CompletedProcess(args=['curl', '-s', 'http://example.com/'], returncode=0, stdout=b'...\n', stderr=b'')
>>> p = subprocess.run(args=["curl", "-s", "http://example.com/"], capture_output=True)
>>> fh = open("download", "w")
>>> fh.write(p.stdout)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: write() argument must be str, not bytes
>>> fh = open("download", "wb")
>>> fh.write(p.stdout)
559
>>> fh.close()