Spyke
PlexSheepreply
feddit.de

I mean if they can see that we type exit and show us this message, why could they not just start the exiting when we type exit?

15
Zronreply
lemmy.world

Because exit might be a variable you use to determine if you should exit. exit() is a function that actually does the exiting.

It’s the difference between pointing at a jogger and saying “run” and actually running after them.

18
Bronco1676reply
lemmy.ml

If you have a variable called exit you've overwritten the function in that scope, and won't be able to execute it.

e.g.

>>> exit=1
>>> exit()
Traceback (most recent call last):
  File "", line 1, in 
TypeError: 'int' object is not callable
>>>
17
WhiskyTangoFoxtrotreply
lemmy.world

Guessing at what the programmer wants instead of implementing consistent behaviour is what Javascript does. Do you want Python to become Javascript?

14
tetris11reply
lemmy.ml

Just once I want '1' + '2' to equal '3'. Is that so much to ask?

5
Metypereply
lemmy.world

You want to remove the string concatenation operator? Cause that'll do it

7
tetris11reply
lemmy.ml

I think every language needs a please operator, which acts to enforce human expectation of a statement:

'1'  + '1'            ## evaluates to '11'
please '1' + '1' ## evaluates to '2'
9
Bronco1676reply
lemmy.ml

This is the code (Github link):

class Quitter(object):
    def __init__(self, name, eof):
        self.name = name
        self.eof = eof
    def __repr__(self):
        return 'Use %s() or %s to exit' % (self.name, self.eof)
    def __call__(self, code=None):
        # Shells like IDLE catch the SystemExit, but listen when their
        # stdin wrapper is closed.
        try:
            sys.stdin.close()
        except:
            pass
        raise SystemExit(code)

What happens is that the python repl calls __repr__ automatically on each variable/statement that you type into the repl (except assignments e.g. x = 1). But this basically only happens in the repl. So "executing" only exit wouldn't work in a python script as it is not calling __repr__ automatically, so better you learn how to do it right than using just exit in your python scripts and scratching your head why it works in the repl but not in your code.

5
MajorHavocreply
lemmy.world

Incidentally, for anyone who hasn't typed 'import antigravity' into an interactive Python terminal...you should - as Dr Seuss says, "These things are fun, and fun is good."

21
tetris11reply
lemmy.ml

I love how it contains exactly one function: from antigravity import geohash

Hell, this is the entire antigravity library:

import webbrowser
import hashlib

webbrowser.open("https://xkcd.com/353/")

def geohash(latitude, longitude, datedow):
    '''Compute geohash() using the Munroe algorithm.

    >>> geohash(37.421542, -122.085589, b'2005-05-26-10458.68')
    37.857713 -122.544543

    '''
    # https://xkcd.com/426/
    h = hashlib.md5(datedow, usedforsecurity=False).hexdigest()
    p, q = [('%f' % float.fromhex('0.' + x)) for x in (h[:16], h[16:32])]
    print('%d%s %d%s' % (latitude, p[1:], longitude, q[1:]))

He literally gets a 32-bit hash, uses the first half of it as the latitude decimal, and the second half of it as the longitude decimal,

8
jcgreply
halubilo.social

You now start flying away

And so does everything else, including all the AIR

3
Vespair
lemm.ee

See it's funny because we name things after other things

8
Andrewreply
mander.xyz

You can search it yourself. The PYPI package is ptpython.

2
Andrewreply
mander.xyz

On Sync it works fine. Moreover, it should work on other clients too. You better open a ticket.

3

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On this deserted island I could use some help() | Spyke