xonsh asciicinema script

xonsh_showoff

# welcome to xonsh
1 + 1
# woah!


# env variables are typed
$HOME
x = 'US'
${x + 'ER'}

# $PATH is a list of strings
$PATH
$PATH.pop(3)
$PATH.insert(3, 'whatever I just popped')

# regex globbing for file names
ls -l `xonsh/\w+?(ci|ic).*`

# tab completion everywhere
cd xonsh
git pu

# aliases can be lists or functions
aliases['ls']
aliases['banana'] = lambda args, stdin=None: 'My spoon is too big!\n'
banana

# multiline input support
if True:
    ls -l
else:
    print("Hi!")

^^^ then scroll up, change true to False, run again

# xonsh environment shortcut
${...}

# but the environment is a dictionary, so we can change things
# in a context manager!
with ${...}.swap(TERM='IAMABANANA'):
    $TERM
    
# did we mention that xonsh is a superset of python?
import numpy

print(numpy.random.random((4, 4))

# but we're still in the shell
ls