Proxy gateway

[eduard93]

Import selected modules/classes/functions and generate ObjectScript classes and methods to call python.

Complete proxy gateway would be great to have but I'm not sure how much time it would take to implement. I'll research at least the scope of the project. Issues:

• Unlike Java/.Net python modules and classes can be aliased which introduces additional complications
• Global functions within "package" - not sure how to proxy that.

[eduard93]

import random
import inspect
classes = inspect.getmembers(random, inspect.isclass)
tree = inspect.getclasstree([cls[1] for cls in classes], 1)
tree

https://docs.python.org/3/library/inspect.html#inspect.getclasstree

[eduard93]

https://www.python-course.eu/python3_class_and_instance_attributes.php

[eduard93]

Currently failing:

• _urandom
• all args... Signature: (size, /)

Maybe try to parse signature if explicit arguments fail? Or provide args?

[eduard93]

Options:

• Skip underscore classes
• Skip underscore methods
• Skip underscore properties

[eduard93]

Need better method/classmethod detection

[eduard93]

Problems so far:

• [ ] feedparser tensorflow - class name/attribute issue. But they compile OK. (https://stackoverflow.com/questions/55561806/how-to-get-a-class-object-from-class-name)

• [x] pkg_resources

  ERROR #5001: code: zzzjson=json.dumps(zzzargs, default=zzztoserializable, allow_nan=True), variable: , serialization: 0, result:
  ERROR #5001: ['Traceback (most recent call last):
  ', '  File "<string>", line 1, in <module>
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\json\__init__.py", line 238, in dumps
  **kw).encode(obj)
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\json\encoder.py", line 199, in encode
  chunks = self.iterencode(o, _one_shot=True)
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\json\encoder.py", line 257, in iterencode
  return _iterencode(o, 0)
  ', 'ValueError: Circular reference detected

• [ ] wave aifc

  2019-04-04 19:47:07 Generating type: wave.Wave_write
  ERROR #5093: Name conflict on class 'py.wave.Wave.write' because package 'py.wave.wave' has the same name but differs in case.

• [ ] ast

  ERROR #5092: Name conflict on class 'py.ast.UnaryOp' because class 'py.ast.unaryop' has the same name but differs in case.

• [ ] hashlib

  2019-04-07 17:55:50 Generating type: _sha3.shake_256
  ERROR #5802: Datatype validation failed on property '%Dictionary.ClassDefinition:IsValid', with value equal to "py.sha3.shake.256"

• [ ] setuptools

  ERROR #5316: Class dependency loop for classes 'py.distutils.extension.Extension,py.setuptools.extension.Extension'

• [ ] six

  2019-04-07 19:24:14 Generating type: six._MovedItems
  ERROR #5001: code: zzzmembers = zzzgetmembers(six._MovedItems, callable), variable: zzzmembers, serialization: 0, result:
  ERROR #5001: ['Traceback (most recent call last):
  ', '  File "<string>", line 1, in <module>
  ', '  File "<string>", line 2, in zzzgetmembers
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\inspect.py", line 342, in getmembers
  value = getattr(object, key)
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\site-packages\six.py", line 92, in __get__
  result = self._resolve()
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\site-packages\six.py", line 115, in _resolve
  return _import_module(self.mod)
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\site-packages\six.py", line 82, in _import_module
  __import__(name)
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\dbm\gnu.py", line 3, in <module>
  from _gdbm import *
  ', "ModuleNotFoundError: No module named '_gdbm'

• [x] astor botocore

  ERROR #5001: code: zzzjson=json.dumps(zzzargs, default=zzztoserializable), variable: , serialization: 0, result:
  ERROR #5001: ['Traceback (most recent call last):
  ', '  File "<string>", line 1, in <module>
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\json\__init__.py", line 238, in dumps
  **kw).encode(obj)
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\json\encoder.py", line 199, in encode
  chunks = self.iterencode(o, _one_shot=True)
  ', '  File "C:\Users\eduard\AppData\Local\Programs\Python\Python36\lib\json\encoder.py", line 257, in iterencode
  return _iterencode(o, 0)
  ', 'TypeError: keys must be a string
  ']

• [x] ssl

  2019-04-07 19:33:17 Generating type: ssl.SSLContext
  ERROR #5001: code: import <unknown>

[eduard93]

Can datatype redefine getter?

[eduard93]

s str2=##class(py.builtins.str).%New(,"str2","'dvd'")
s bytes=str2.encode() <-fail
s sc = ##class(isc.py.Main).ImportModule("zlib")
write ##class(py.zlib).crc32(bytes)

write ##class(py.zlib).crc32("b'dvd'")

write ##class(py.zlib).crc32("b'dvd'")
2200289759
PYTHON>w $ZCRC("dvd",7)

[eduard93]

Closed.

Open releated issues on individual basis.