allpy: 3a712982ceb8 allpy/util.py

allpy

view allpy/util.py @ 843:3a712982ceb8

blocks3d/wt: use vector instead of list as container for tasks Actions are needed from this container: * remove_if * size * push_back list should have constant size(), but it has linear size in some implementations (for example, in g++).

author	boris <bnagaev@gmail.com>
date	Wed, 20 Jul 2011 02:42:04 +0200
parents	88b04c08f539
children	927085d03977

line source

1 """Miscellanous utilities.

2 """

3 import warnings

5 def unzip(seq):

6 """The oppozite of zip() builtin."""

7 a, b = [], []

8 for x, y in seq:

9 a.append(x)

10 b.append(y)

11 return a, b

13 def remove_each(string, substrings):

14 """Remove each of substrings from string."""

15 for sub in substrings:

16 string = string.replace(sub, "")

17 return string

19 class UserDict(dict):

20 """Clone of dict that user may add attributes to."""

21 pass

23 class UserList(list):

24 """Clone of list that user may add attributes to."""

25 pass

27 class UserString(str):

28 """Clone of str that user may add attributes to."""

29 pass

31 def deprecated(message):

32 """Warn about function being deprecated."""

33 warnings.warn(message, DeprecationWarning, stacklevel=2)

35 class lazy_import(object):

36 """Lazy module import to help breaking bad import loops."""

37 def __init__(self, name, globals={}, locals={}, fromlist=[], level=-1):

38 self.name = name

39 self.globals = globals

40 self.locals = locals

41 self.fromlist = fromlist

42 self.level = level

43 def __getattr__(self, attr):

44 self.module = __import__(

45 self.name, self.globals, self.locals, self.fromlist, self.level

46 )

47 self.__dict__ = self.module.__dict__

48 return self.__dict__[attr]

50 # vim: set et ts=4 sts=4 sw=4: