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0
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1
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2 """
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3 Private compatability module for running under python version 2.3.
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4
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5 Replacement for
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6 o string.Template -- introduced in python 2.4
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7 o subprocess -- introduced in python 2.4
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8
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9 o resource_string -- introduced in pkg_resource of setuptools
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10 o resource_stream
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11 o resource_filename
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12
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13 from string import Template -> from corebio._future import Template
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14
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15 """
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16
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17
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18 try :
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19 import pkg_resources
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20 except ImportError :
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21 pkg_resources = None
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22
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23
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24 try :
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25 from string import Template
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26 except ImportError :
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27 from _string import Template
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28
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29
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30
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31
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32 def resource_string( modulename, resource, basefilename = None):
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33 """Locate and return a resource as a string.
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34 >>> f = resource_string( __name, 'somedatafile', __file__)
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35 """
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36 if pkg_resources :
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37 return pkg_resources.resource_string(modulename, resource)
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38
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39 f = resource_stream( modulename, resource, basefilename)
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40 return f.read()
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41
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42 def resource_stream( modulename, resource, basefilename = None):
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43 """Locate and return a resource as a stream.
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44 >>> f = resource_stream( __name__, 'somedatafile', __file__)
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45 """
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46 if pkg_resources :
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47 return pkg_resources.resource_stream(modulename, resource)
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48
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49 return open( resource_filename( modulename, resource, basefilename) )
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50
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51 def resource_filename( modulename, resource, basefilename = None):
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52 """Locate and return a resource filename.
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53 >>> f = resource_stream( __name__, 'somedatafile', __file__)
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54
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55 A resource is a data file stored with the python code in a package.
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56 All three resource methods (resource_string, resource_stream,
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57 resource_filename) call the corresponding methods in the 'pkg_resources'
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58 module, if installed. Otherwise, we resort to locating the resource
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59 in the local filesystem. However, this does not work if the package
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60 is located inside a zip file.
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61 """
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62 if pkg_resources :
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63 return pkg_resources.resource_filename(modulename, resource)
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64
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65 if basefilename is None :
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66 raise NotImplementedError(
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67 "Require either basefilename or pkg_resources")
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68
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69 import os
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70 return os.path.join(os.path.dirname(basefilename), resource)
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71
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72
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73
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74
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75
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76
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77
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78 |
