PyPrivate 0.3

Add private/protected/public fields to Python

Python private

This package is adding private/protected/public fields to Python.

Without PyPrivate:

class Foo():
	__x = 7 # Private "x"
	def baz(self):
		self.__x += 7

def bar(f, n):
	try:
		getattr(f, n)
	except:
		print('"' + n + '" not found')
	else:
		print('"' + n + '" found')

myfoo = Foo()
myfoo.baz()
bar(myfoo, "__x")     # "__x" not found
bar(myfoo, "_Foo__x") # "_Foo__x" found

With PyPrivate:

from privatefields import privatefields

@privatefields
class Foo():
	private_x = 7 # Private "x"
	def baz(self):
		self.private_x += 7

def bar(f, n):
	try:
		getattr(f, n)
	except:
		print('"' + n + '" not found')
	else:
		print('"' + n + '" found')

myfoo = Foo()
myfoo.baz()
bar(myfoo, "private_x") # "private_x" not found
print(dir(myfoo)) # no "x"

How to use

PyPrivate is easy to use. To use private/protected fields import "privatefields":

from privatefields import privatefields

Next, use it with your classes:

@privatefields
class Foo():
	pass

And add prefixes private_/protected_ to your variables/methods names:

self.z           # Public
self.protected_y # Protected
self.private_x   # Private

Friends

You can declare "friend" classes/functions. For this add this line to your class:

class Baz(): # This class can use "x"
	pass
class Bar(): # This class can't use "x"
	pass
@privatefields
class Foo():
	friends = [Baz]
	private_x = "Secret data" # Private "x"

What's new

0.2

• Added support for removing attributes (delattr).
• Replaced error message from "(name) object has no attribute (attribute)" to "attribute (attribute) is private/protected"
• Bugs fixed

0.3

• Added suppression of replacing __attribute with _Class__attribute
• Added flag pythonStyle. This flag replaces private_ with __ and protected_ with _
• Bugs fixed

0.4

• A global improvement will be added. There will no longer be a need to use the @privatefields decorator. All classes will automatically have a private/protected fields system.

Planned before 0.9

• Added updated system (beta). Use flag updatedSystem to enable new system.