Mercurial > hg > pyloader
annotate pyloader/loader.py @ 2:6cb7696edc4d
add some more stuff for string loady type things and rearrange structure
| author | Jeff Hammel <jhammel@mozilla.com> |
|---|---|
| date | Tue, 10 May 2011 09:28:40 -0700 |
| parents | pyloader/__init__.py@47d9472e7754 |
| children | 65d9a7c7ac63 |
| rev | line source |
|---|---|
| 0 | 1 #!/usr/bin/env python |
| 2 | |
| 3 """ | |
| 4 load modules and their attributes from a string | |
| 5 """ | |
| 6 | |
| 7 import imp | |
| 8 import os | |
|
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47d9472e7754
add path of file directory when loading files
Jeff Hammel <jhammel@mozilla.com>
parents:
0
diff
changeset
|
9 import sys |
| 0 | 10 |
| 11 def import_dotted_path(module): | |
| 12 path = module.split('.') | |
| 13 module = __import__(module) | |
| 14 for name in path[1:]: | |
| 15 module = getattr(module, name) | |
| 16 return module | |
| 17 | |
| 18 def load(string): | |
| 19 """loads a string and returns a python object""" | |
| 20 | |
| 21 try: | |
| 22 if ':' in string: | |
| 23 path, target = string.split(':', 1) | |
| 24 if os.path.isabs(path) and os.path.exists(path): | |
| 25 # path to file | |
|
1
47d9472e7754
add path of file directory when loading files
Jeff Hammel <jhammel@mozilla.com>
parents:
0
diff
changeset
|
26 sys.path.append(os.path.dirname(path)) |
| 0 | 27 module = imp.load_source(path, path) |
|
1
47d9472e7754
add path of file directory when loading files
Jeff Hammel <jhammel@mozilla.com>
parents:
0
diff
changeset
|
28 sys.path.pop() |
| 0 | 29 else: |
| 30 module = import_dotted_path(path) | |
| 31 obj = module | |
| 32 while '.' in target: | |
| 33 attr, target = target.split('.', 1) | |
| 34 obj = getattr(obj, attr) | |
| 35 obj = getattr(obj, target) | |
| 36 return obj | |
| 37 else: | |
| 38 # module: dotted path | |
| 39 return import_dotted_path(string) | |
| 40 except: | |
| 41 print string | |
| 42 raise | |
| 43 | |
| 44 # TODO: entry points | |
| 45 | |
| 46 if __name__ == '__main__': | |
| 47 import sys | |
| 48 for i in sys.argv[1:]: | |
| 49 print load(i) |