U ?h(@sdZddlZddlZddlmZddlmZddlmZddd d d d d gZ da iZ iZ iZ dddgdgdgdZddZeddZddZdd ZddZddZed'dd ZeZddZd(d dZd!d"Zd#d$Zd%d Zd&d ZdS))aAHandle image reading, writing and plotting plugins. To improve performance, plugins are only loaded as needed. As a result, there can be multiple states for a given plugin: available: Defined in an *ini file located in `skimage.io._plugins`. See also `skimage.io.available_plugins`. partial definition: Specified in an *ini file, but not defined in the corresponding plugin module. This will raise an error when loaded. available but not on this system: Defined in `skimage.io._plugins`, but a dependent library (e.g. Qt, PIL) is not available on your system. This will raise an error when loaded. loaded: The real availability is determined when it's explicitly loaded, either because it's one of the default plugins, or because it's loaded explicitly by the user. 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Z_pluginsz*.iniprovideszfile z6 not recognized as a scikit-image io plugin, skipping.cSsg|] }|qSr)strip)rsrrr tsz!_scan_plugins..,cSsg|]}|tkr|qSrrrrrrr3uszPlugin `z!` wants to provide non-existent `z `. Ignoring.rrN)ospathdirname__file__rjoinr/warningswarnplugin_meta_datasplitrprintappendplugin_providesbasenameplugin_module_name) pd config_filesr*r,r-r0Zvalid_providesrZneed_to_add_collectionrrr _scan_pluginsgs(   rFFcCs`t}tD]}|D]\}}||qqi}tD]&}|rD||kr4ddt|D||<q4|S)a1List available plugins. Parameters ---------- loaded : bool If True, show only those plugins currently loaded. By default, all plugins are shown. Returns ------- p : dict Dictionary with plugin names as keys and exposed functions as values. cSsg|]}|ds|qS)_) startswith)rfrrrr3s z*find_available_plugins..)setrvaluesaddrA)loadedZactive_pluginsZ plugin_funcr%funcdrrrr s   c s|tkrtd|dt|}t|dkr@d|d}t||dddkrb|d\}}nNtzfdd |Dd}Wn*tk rtd d |d YnX|||S) aFind the appropriate plugin of 'kind' and execute it. Parameters ---------- kind : {'imshow', 'imsave', 'imread', 'imread_collection'} Function to look up. plugin : str, optional Plugin to load. Defaults to None, in which case the first matching plugin is used. *args, **kwargs : arguments and keyword arguments Passed to the plugin function. zInvalid function (z ) requested.rz"No suitable plugin registered for z. You may load I/O plugins with the `skimage.io.use_plugin` command. A list of all available plugins are shown in the `skimage.io` docstring.r%Ncsg|]\}}|kr|qSrr)rrrIr%rrr3szcall_plugin..zCould not find the plugin "z" for .)r ValueErrorlenr#pop_load IndexError)r!argskwargsZ plugin_funcsmsgrGrNrrPrrs   cs|dkrt}n:|tkr4tdd|d|dkrF|dg}n|g}t|D]P}|tkrttd|dt|}fd d |Dfd d |D}|t|<qXdS) aSSet the default plugin for a specified operation. The plugin will be loaded if it hasn't been already. Parameters ---------- name : str Name of plugin. kind : {'imsave', 'imread', 'imshow', 'imread_collection', 'imshow_collection'}, optional Set the plugin for this function. By default, the plugin is set for all functions. See Also -------- available_plugins : List of available plugins Examples -------- To use Matplotlib as the default image reader, you would write: >>> from skimage import io >>> io.use_plugin('matplotlib', 'imread') To see a list of available plugins run ``io.available_plugins``. Note that this lists plugins that are defined, but the full list may not be usable if your system does not have the required libraries installed. NPlugin z does not support `z`.rr'z!' is not a known plugin function.cs g|]\}}|kr||fqSrrrnrIr,rrr3szuse_plugin..cs g|]\}}|kr||fqSrrr\r^rrr3s)rrrAr#rU)r,r!kfuncsrr^rrs    cCs6t|ds2t|dr2t|d}t|}t|d|dS)z9Add `imread_collection` to module if not already present.rrN)hasattrgetattrrsetattr)modulerrNrrr#_inject_imread_collection_if_neededs recCs|tddkrdS|tkr,td|dnt|}td||gd}t|}|D]d}|dkrht|n"t||std|d |d qRt|}t ||}||f|krR| ||fqRdS) zLoad the given plugin. Parameters ---------- plugin : str Name of plugin to load. See Also -------- plugins : List of available plugins T)rMNrZz not found.zskimage.io._plugins.)fromlistrz does not provide z as advertised. Ignoring.) r rCrR __import__rArerar?rrbr@)r%modnameZ plugin_moduler0rstorerNrrrrUs&     rUcCs4z t|WStk r.td|dYnXdS)zReturn plugin meta-data. Parameters ---------- plugin : str Name of plugin. 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