password = getpass('[sudo] password for {}: '.format(getuser()))

with sh.contrib.sudo(password=password, _with=True):
    ls = sh.ls()
    print(ls)

for line in sh.tr(sh.cat("test.log", _piped=True),
                  "[:upper:]", "[:lower:]", _iter=True):
    print(line)

password = getpass('[sudo] password for {}: '.format(getuser()))

with sh.contrib.sudo(password=password, _with=True):
    for line in sh.tr(sh.cat("test.log", _piped=True),
                      "[:upper:]", "[:lower:]", _iter=True):
        print(line)

Exception in thread background thread for pid 5163:
Traceback (most recent call last):
  File "/usr/lib/python3.5/threading.py", line 914, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.5/threading.py", line 862, in run
    self._target(*self._args, **self._kwargs)
  File "/home/user/workspaces/spyder_python3/test/src/sh.py", line 1540, in wrap
    fn(*args, **kwargs)
  File "/home/user/workspaces/spyder_python3/test/src/sh.py", line 2459, in background_thread
    handle_exit_code(exit_code)
  File "/home/user/workspaces/spyder_python3/test/src/sh.py", line 2157, in fn
    return self.command.handle_command_exit_code(exit_code)
  File "/home/user/workspaces/spyder_python3/test/src/sh.py", line 815, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1:

  RAN: /usr/bin/sudo -S /usr/bin/tr [:upper:] [:lower:]

  STDOUT:


  STDERR:
[sudo] password for user: Sorry, try again.
[sudo] password for user: Sorry, try again.
[sudo] password for user: sudo: 3 incorrect password attempts


Traceback (most recent call last):
  File "sh_test.py", line 42, in <module>
    sudo_redirect()
  File "sh_test.py", line 38, in sudo_redirect
    "[:upper:]", "[:lower:]", _iter=True):
  File "/home/user/workspaces/spyder_python3/test/src/sh.py", line 863, in next
    self.wait()
  File "/home/user/workspaces/spyder_python3/test/src/sh.py", line 792, in wait
    self.handle_command_exit_code(exit_code)
  File "/home/user/workspaces/spyder_python3/test/src/sh.py", line 815, in handle_command_exit_code
    raise exc
sh.ErrorReturnCode_1:

  RAN: /usr/bin/sudo -S /usr/bin/tr [:upper:] [:lower:]

  STDOUT:


  STDERR:
[sudo] password for user: Sorry, try again.
[sudo] password for user: Sorry, try again.
[sudo] password for user: sudo: 3 incorrect password attempts