author | Nishanth Amuluru <nishanth@fossee.in> |
Sun, 09 Jan 2011 00:53:11 +0530 | |
changeset 348 | 1eb24b1662cf |
parent 307 | c6bca38c1cbf |
permissions | -rw-r--r-- |
307
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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1 |
# Taken from Python 2.7 with permission from/by the original author. |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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2 |
import sys |
c6bca38c1cbf
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3 |
|
c6bca38c1cbf
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4 |
def _resolve_name(name, package, level): |
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5 |
"""Return the absolute name of the module to be imported.""" |
c6bca38c1cbf
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6 |
if not hasattr(package, 'rindex'): |
c6bca38c1cbf
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raise ValueError("'package' not set to a string") |
c6bca38c1cbf
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dot = len(package) |
c6bca38c1cbf
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9 |
for x in xrange(level, 1, -1): |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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try: |
c6bca38c1cbf
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dot = package.rindex('.', 0, dot) |
c6bca38c1cbf
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except ValueError: |
c6bca38c1cbf
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13 |
raise ValueError("attempted relative import beyond top-level " |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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"package") |
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return "%s.%s" % (package[:dot], name) |
c6bca38c1cbf
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c6bca38c1cbf
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18 |
def import_module(name, package=None): |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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"""Import a module. |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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20 |
|
c6bca38c1cbf
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21 |
The 'package' argument is required when performing a relative import. It |
c6bca38c1cbf
Added buildout stuff and made changes accordingly
Nishanth Amuluru <nishanth@fossee.in>
parents:
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22 |
specifies the package to use as the anchor point from which to resolve the |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
parents:
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23 |
relative import to an absolute import. |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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24 |
|
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""" |
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if name.startswith('.'): |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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27 |
if not package: |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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raise TypeError("relative imports require the 'package' argument") |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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level = 0 |
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30 |
for character in name: |
c6bca38c1cbf
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31 |
if character != '.': |
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break |
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level += 1 |
c6bca38c1cbf
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name = _resolve_name(name[level:], package, level) |
c6bca38c1cbf
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Nishanth Amuluru <nishanth@fossee.in>
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__import__(name) |
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36 |
return sys.modules[name] |