ó ćNXc@sădZddlZddlZddlmZddlmZdZdZdZ dZ d Z d e fd „ƒYZ e ƒZejjeƒd „Zd „Zd„Zd„Zd„Zdd„Zd„Zd„Zd„ZdS(sD This module contains factory functions that attempt to return Qt submodules from the various python Qt bindings. It also protects against double-importing Qt with different bindings, which is unstable and likely to crash This is used primarily by qt and qt_for_kernel, and shouldn't be accessed directly from the outside i˙˙˙˙N(tpartial(t check_versiontpyqttpyqt5tpyqtv1t pyqtdefaulttpysidet ImportDeniercBs5eZdZd„Zd„Zdd„Zd„ZRS(sfImport Hook that will guard against bad Qt imports once IPython commits to a specific binding cCstƒ|_dS(N(tsett_ImportDenier__forbidden(tself((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt__init__scCs'tjj|dƒ|jj|ƒdS(N(tsystmodulestpoptNoneR tadd(R t module_name((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pytforbid!scCs!|r dS||jkr|SdS(N(R (R tfullnametpath((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt find_module%scCstd|tƒfƒ‚dS(Nsi Importing %s disabled by IPython, which has already imported an Incompatible QT Binding: %s (t ImportErrort loaded_api(R R((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt load_module+sN(t__name__t __module__t__doc__R RRRR(((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyRs    cCsp|tkr)tjdƒtjdƒnC|tkrRtjdƒtjdƒntjdƒtjdƒdS(s[Commit to a particular API, and trigger ImportErrors on subsequent dangerous importstPyQt4tPyQt5tPySideN(t QT_API_PYSIDEtIDRt QT_API_PYQT5(tapi((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt commit_api5s     cCsSdtjkr)tƒdkr"tStSn&dtjkr<tSdtjkrOtSdS(sÂReturn which API is loaded, if any If this returns anything besides None, importing any other Qt binding is unsafe. Returns ------- None, 'pyside', 'pyqt', or 'pyqtv1' s PyQt4.QtCoreis PySide.QtCores PyQt5.QtCoreN(R R t qtapi_versiont QT_API_PYQTt QT_API_PYQTv1RR!R(((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyRDs cCsăidt6dt6dt6dt6dt6}||}ddl}y‹t|ƒ}|jd|jƒ|jd|jƒ|jd|jƒ|tkrŠ|jd |jƒn|tkrĹt |j d ƒSt SWnt k rŢt SXdS( s=Safely check for PyQt4/5 or PySide, without importing submodules Parameters ---------- api : str [ 'pyqtv1' | 'pyqt' | 'pyqt5' | 'pyside' | 'pyqtdefault'] Which module to check for Returns ------- True if the relevant module appears to be importable RRRi˙˙˙˙NtQtCoretQtGuitQtSvgt QtWidgetss1.0.3(RR%R&R!tQT_API_PYQT_DEFAULTtimpt __import__Rt__path__Rt __version__tTrueRtFalse(R"RR,tmod((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt has_bindingZs&        cCsOyddl}Wntk r$dSXy|jdƒSWntk rJdSXdS(s„Return which QString API has been set, if any Returns ------- The QString API version (1 or 2), or None if not set i˙˙˙˙NtQString(tsipRtgetapit ValueError(R5((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyR$†s  cCsLt|ƒstStƒ}|tkr8|ttdgkS||dgkSdS(s?Safely query whether an API is importable, without importing itN(R3R1RR+R%R&R(R"tcurrent((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt can_import—s    icCsÎddl}|dk r;|jd|ƒ|jd|ƒnddlm}m}m}t|jdƒst d|jƒ‚n|j |_ |j |_ |jdƒ}|dkr¸tnt}||||fS( sč Import PyQt4 Parameters ---------- version : 1, 2, or None Which QString/QVariant API to use. Set to None to use the system default ImportErrors rasied within this function are non-recoverable i˙˙˙˙NR4tQVariant(R(R'R)s4.7s'IPython requires PyQt4 >= 4.7, found %si(R5RtsetapiRR(R'R)RtPYQT_VERSION_STRRt pyqtSignaltSignaltpyqtSlottSlotR6R&R%(tversionR5R(R'R)R"((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt import_pyqt4Łs    cCs‘ddl}ddlm}m}m}m}|j|_|j|_ t j dƒ}|j j |j ƒ|j j |j ƒt}||||fS(sX Import PyQt5 ImportErrors rasied within this function are non-recoverable i˙˙˙˙N(R'R)R*R(t QtGuiCompat(R5RR'R)R*R(R=R>R?R@ttypest ModuleTypet__dict__tupdateR!(R5R'R)R*R(RCR"((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt import_pyqt5Čs "  cCs,ddlm}m}m}|||tfS(sY Import PySide ImportErrors raised within this function are non-recoverable i˙˙˙˙(R(R'R)(RR(R'R)R(R(R'R)((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt import_pysideßsc Cs itt6tt6tt6ttddƒt6ttddƒt 6}xÁ|D]…}||kr™t d|dj g|j ƒD]}d|^qvƒfƒ‚nt |ƒsŤqHn||ƒ}|d}t|ƒ|SWtdtƒttƒttƒttƒ|fƒ‚dS( s˛ Attempt to import Qt, given a preference list of permissible bindings It is safe to call this function multiple times. Parameters ---------- api_options: List of strings The order of APIs to try. Valid items are 'pyside', 'pyqt', 'pyqt5', 'pyqtv1' and 'pyqtdefault' Returns ------- A tuple of QtCore, QtGui, QtSvg, QT_API The first three are the Qt modules. The last is the string indicating which module was loaded. Raises ------ ImportError, if it isn't possible to import any requested bindings (either becaues they aren't installed, or because an incompatible library has already been installed) RAis'Invalid Qt API %r, valid values are: %ss, s%ri˙˙˙˙sm Could not load requested Qt binding. Please ensure that PyQt4 >= 4.7, PyQt5 or PySide >= 1.0.3 is available, and only one is imported per session. Currently-imported Qt library: %r PyQt4 installed: %s PyQt5 installed: %s PySide >= 1.0.3 installed: %s Tried to load: %r N(RIRRBR%RHR!RR&RR+t RuntimeErrortjointkeysR9R#RRR3(t api_optionstloadersR"tktresult((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pytload_qtés,   9        (RR RDt functoolsRtIPython.utils.versionRR%R!R&R+RtobjectRR t meta_pathtappendR#RR3R$R9RBRHRIRQ(((sS/data/av2000/mvv/env_mvv/lib/python2.7/site-packages/IPython/external/qt_loaders.pyt s*      ,  %