Python

CLI - Shell

• prompt-toolkit: allows to get a shell in which the user can execute commands.
  • keeps a history of the commands
  • proposal of completion from existing commands and from the history
  • syntax highlighting
  • dialog box (Ex: Important decision)
• PyInquirer: create simple interactions with the user (questions/answers)

Click

How to use a tag (eg:@common_options) for commands that have same options.

def common_options(f: Callable):
	options = [
		click.option(...),
	]
	return functools.reduce(lambda x,opt: opt(x)options,f)

Data visualization

• Pandas, Numpy
• Matplotlib, Graphviz, Dash, Orange

Recursive unzip with password

import os

number = 556

while number > 0:
	os.system("zip2john zip_"+str(number)+".zip > hash")
	os.system("john --wordlist=rockyou.txt hash > dustbin")
	os.system("john --show hash > needyou")
	f = open('needyou','r')
	lines = f.readlines()
	password = lines[0].split(':')[1]
	f.close()
	os.system("unzip -P "+password+" zip_"+str(number)+".zip")
	os.system("rm zip_"+str(number)+".zip")
	number-=1

Testing in Python

@pytest.fixture

Run code before a test method

@pytest.fixture
def before_test():
	pass

def test_f1(before_test):
	pass

@pytest.mark

Run test by markers: pytest.mark.<name>

pytest -m <marker>

pytest.mark.parametrize

Run a test again multiple sets of argument

@pytest.mark.parametrize("i,j,o",[(5,5,10),(3,5,12)])
def test_add(i,j,o):
	assert i+j == o,"failed"

@pytest.raises

We expect to have an error. @pytest.raises(ValueError)

Command line options

-s # display prints
-pytest-randomly # run tests in a random order
-pytest-cov # compute code coverage at the same time