py23

py23 is a cli tool program that reads Python 2.x source code and applies a series of conversions to transform it into valid Python 3.x code.

Usage no npm install needed!

<script type="module">
  import py23 from 'https://cdn.skypack.dev/py23';
</script>

README

py23

Convert your Python 2.x source code into valid Python 3.x code.

Installation

yarn global add py23

npm install -g py23

Usage

  py23 --path ./

  // recursively convert all python 2.x source code files into python 3 valid code

  py23 --path ./app.py

  // converts all code in app.py file

Supported conversions:

print

Converts the print statement to the print() function.

getcwdu

Renames os.getcwdu() to os.getcwd().

raw_input

Converts raw_input() to input().

raise

Converts raise E, V to raise E(V)

has_key

Changes dict.has_key(key) to key indict.

except

Converts except X, T to except X as T.

unittest methods

Python 2.x (From) Python 3.x (To)
failUnlessEqual(a, b) assertEqual(a, b)
assertEquals(a, b) assertEqual(a, b)
failIfEqual(a, b) assertNotEqual(a, b)
assertNotEquals(a, b) assertNotEqual(a, b)
failUnless(a) assertTrue(a)
assert_(a) assertTrue(a)
failIf(a) assertFalse(a)
failUnlessRaises(exc, cal) assertRaises(exc, cal)
failUnlessAlmostEqual(a, b) assertAlmostEqual(a, b)
assertAlmostEquals(a, b) assertAlmostEqual(a, b)
failIfAlmostEqual(a, b) assertNotAlmostEqual(a, b)
assertNotAlmostEquals(a, b) assertNotAlmostEqual(a, b)