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Description:

protecc 0.0.2

protecc
Access modifiers for python.
Setup
PIP install
pip install protecc

From the source
git clone https://github.com/avinashshenoy97/protecc
cd protecc
python setup.py install

Usage
Old-Style Classes
Inherit from/extend the protecc class.
from protecc import protecc

class regulatedClass(protecc):
def __init__(self):
self.publicVariable = 'public value'
self._privateVariable = 'private value'

def publicMethod(self):
return True

def __privateMethod(self):
return True

def getPrivateVariable(self):
return self._privateVariable

def privateMethodProxy(self):
return self.__privateMethod()

New-Style Classes (type)
If you prefer metaclass (for better readability/what not), use metaProtecc.
class metaRegulatedClass(metaclass=metaProtecc):
def __init__(self):
self.publicVariable = 'public value'
self._privateVariable = 'private value'

def publicMethod(self):
return True

def __privateMethod(self):
return True

def getPrivateVariable(self):
return self._privateVariable

def privateMethodProxy(self):
return self.__privateMethod()

When accessing "private" methods (i.e, methods that begin with either a single or two underscores), this exception is raised
>>> r = regulatedClass()
>>> r.__privateMethod()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Users/avinashshenoy/STUFF/projects/protecc/protecc.py", line 23, in __protecced_getattribute__
raise AccessException('Cannot access ' + varType + ' member ' + name) from None
protecc.AccessException: Cannot access private member __privateMethod

Private methods can still be accessed from within other class methods, as is expected:
>>> r = regulatedClass()
>>> r.privateMethodProxy()
True

Note

This is, by no means, fool-proof access protection.
"Private members" are those members whose names are mangled by Python, as per PEP 8 conventions, i.e, starting with 2 underscores and having not more than one trailing underscore.
Additionally, "protected members" are those members whose names are preceded by a single underscores. These members cannot be accessed from outside the class as well, as is expected.

Primary Contributors

Avinash Shenoy

License
This project is released under the MIT License.