| 15 |
import os |
import os |
| 16 |
import os.path |
import os.path |
| 17 |
import weakref |
import weakref |
| 18 |
|
import traceback |
| 19 |
|
|
| 20 |
import Thuban |
import Thuban |
| 21 |
from Thuban import _ |
from Thuban import _ |
| 33 |
|
|
| 34 |
PROJ_EXT = ".proj" |
PROJ_EXT = ".proj" |
| 35 |
|
|
| 36 |
has_gdal_support = lambda: False |
# Determine the status of GDAL support. If GDAL is supported |
| 37 |
try: |
# gdal_support_status will be set to the empty string, otherwise to a |
| 38 |
# first try to see if our extension module is there. if it |
# string with information why it isn't supported |
| 39 |
# wasn't even compiled, we obviously don't have gdal support. |
# |
| 40 |
import gdalwarp |
# GDAL is supported if we can import both the thuban specific gdalwarp |
| 41 |
|
# module and the GDAL python bindings. |
| 42 |
# now try to import the python extension. if this doesn't |
for _module in ("gdalwarp", "gdal"): |
| 43 |
# exist then we can't do anything. |
try: |
| 44 |
import gdal |
__import__(_module) |
| 45 |
|
except ImportError, val: |
| 46 |
"""Return True if the gdal library is available.""" |
gdal_support_status = (_("No GDAL support because module '%s'" |
| 47 |
has_gdal_support = lambda: True |
" cannot be imported. Python exception: '%s'") |
| 48 |
except ImportError: |
% (_module, str(val))) |
| 49 |
pass |
break |
| 50 |
|
else: |
| 51 |
|
gdal_support_status = "" |
| 52 |
|
|
| 53 |
|
def has_gdal_support(): |
| 54 |
|
return gdal_support_status == "" |
| 55 |
|
|
| 56 |
|
|
| 57 |
projfile_cache = weakref.WeakValueDictionary() |
projfile_cache = weakref.WeakValueDictionary() |
| 58 |
|
|
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