sys.executable
import sys
print('Current python version: ', sys.version)
print('Download dependencies here: ', sys.executable)sys.executable
import sys
print('Current python version: ', sys.version)
print('Download dependencies here: ', sys.executable)python system exit
import sys
sys.exit(0)python sys
import sys
print('Python version you are using')
print(sys.version)
print('Informantion')
print(sys.version_info)sys.displayhook
import sys
class ExpressionCounter(object):
def __init__(self):
self.count = 0
self.previous_value = self
def __call__(self, value):
print
print ' Previous:', self.previous_value
print ' New :', value
print
if value != self.previous_value:
self.count += 1
sys.ps1 = '(%3d)> ' % self.count
self.previous_value = value
sys.__displayhook__(value)
print 'installing'
sys.displayhook = ExpressionCounter()sys python
def displayhook(value):
if value is None:
return
# Set '_' to None to avoid recursion
builtins._ = None
text = repr(value)
try:
sys.stdout.write(text)
except UnicodeEncodeError:
bytes = text.encode(sys.stdout.encoding, 'backslashreplace')
if hasattr(sys.stdout, 'buffer'):
sys.stdout.buffer.write(bytes)
else:
text = bytes.decode(sys.stdout.encoding, 'strict')
sys.stdout.write(text)
sys.stdout.write("\n")
builtins._ = valueargv python function
# arguments
def test_var_args(f_arg, *argv):
print("first normal arg:", f_arg)
for arg in argv:
print("another arg through *argv :", arg)
test_var_args('yasoob','python','eggs','test')
# keywork arguments
def test_var_kwargs(f_arg, **kwargs):
print(f_arg)
for (key, item) in kwargs.items():
print("Keyword: ", key)
print("Value: ", item)
test_var_kwargs('yasoob', x = 12)Copyright © 2021 Codeinu
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