B [x, @sdZddlZddlZddlmZddlmZddZdZdZ d Z d Z d Z d Z e d e dede de de diZGdddeZeZejeddZddZddZddZejdkreZddZddZd-d!d"Zd#d$Zd%d&Zd'd(Zd)d*Zd+d,Z dS).aD This module contains factory functions that attempt to return Qt submodules from the various python Qt bindings. It also protects against double-importing Qt with different bindings, which is unstable and likely to crash This is used primarily by qt and qt_for_kernel, and shouldn't be accessed directly from the outside N)partial) LooseVersioncCs*yt|t|kStk r$dSXdS)zcompare versionsTN)r TypeError)abr3lib/python3.7/site-packages/qtconsole/qt_loaders.py check_versionsr ZpyqtZpyqt5Zpyqtv1Z pyqtdefaultZpysideZpyside2PySide2PySidePyQt4PyQt5c@s2eZdZdZddZddZd ddZd d ZdS) ImportDenierz`Import Hook that will guard against bad Qt imports once committed to a specific binding cCs t|_dS)N)set_ImportDenier__forbidden)selfrrr__init__.szImportDenier.__init__cCstj|d|j|dS)N)sysmodulespopradd)r module_namerrrforbid1szImportDenier.forbidNcCs|rdS||jkr|SdS)N)r)rfullnamepathrrr find_module5s zImportDenier.find_modulecCstd|tfdS)Nzk Importing %s disabled by QtConsole, which has already imported an incompatible Qt Binding: %s ) ImportError loaded_api)rrrrr load_module;szImportDenier.load_module)N)__name__ __module__ __qualname____doc__rrrrrrrrr)s  rcCs|tkr(tdtdtdnn|tkrPtdtdtdnF|tkrxtdtdtdntdtdtddS)z[Commit to a particular API, and trigger ImportErrors on subsequent dangerous importsr r r r N)QT_API_PYSIDE2IDr QT_API_PYSIDE QT_API_PYQT5)apirrr commit_apiEs           r(cCsLdtjkrtdkrtStSn*dtjkr,tSdtjkr:tSdtjkrHtSdS)zReturn which API is loaded, if any If this returns anything besides None, importing any other Qt binding is unsafe. Returns ------- None, 'pyside2', 'pyside', 'pyqt', or 'pyqtv1' z PyQt4.QtCorez PySide.QtCorezPySide2.QtCorez PyQt5.QtCoreN)rr qtapi_version QT_API_PYQT QT_API_PYQTv1r%r#r&rrrrr[s     rcCst|}ddl}y|t|}|dt|j|dt|j|dt|j|tks`|tkrr|dt|j|tkrt |j dSdSWnt k rd SXdS) anSafely check for PyQt4/5, PySide or PySide2, without importing submodules Supports Python <= 3.3 Parameters ---------- api : str [ 'pyqtv1' | 'pyqt' | 'pyqt5' | 'pyside' | 'pyside2' | 'pyqtdefault'] Which module to check for Returns ------- True if the relevant module appears to be importable rNQtCoreQtGuiQtSvg QtWidgetsz1.0.3TF) api_to_moduleimp __import__rlist__path__r&r#r%r __version__r)r'rr2modrrr has_bindingss r8c Cst|}ddlm}dddg}|ttfkr4|dxB|D]:}y|d||f}Wntk rfdSX|d kr:dSq:W|tkrdd l}t |j d Sd S) aZSafely check for PyQt4/5 or PySide, without importing submodules Supports Python >= 3.4 Parameters ---------- api : str [ 'pyqtv1' | 'pyqt' | 'pyqt5' | 'pyside' | 'pyqtdefault'] Which module to check for Returns ------- True if the relevant module appears to be importable r) find_specr-r.r/r0z%s.%sFNz1.0.3T) r1importlib.utilr9r&r#appendrr%r r r6)r'rr9ZrequiredZsubmodspecr rrrhas_binding_news       r=)cCsFy ddl}Wntk r dSXy |dStk r@dSXdS)zReturn which QString API has been set, if any Returns ------- The QString API version (1 or 2), or None if not set rNQString)siprgetapi ValueError)rArrrr*s  r*cCs8t|s dSt}|tkr(|ttdgkS||dgkSdS)z?Safely query whether an API is importable, without importing itFN)r8rQT_API_PYQT_DEFAULTr+r,)r'Zcurrentrrr can_imports rEr)cCsddl}|dk r(|d||d|ddlm}m}m}t|jdsVtd|j|j |_ |j |_ | d}|dkr|tnt}||||fS) z 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 rNr@ZQVariant)r.r-r/z4.7z)QtConsole requires PyQt4 >= 4.7, found %s)rAZsetapir r.r-r/r ZPYQT_VERSION_STRr pyqtSignalSignalpyqtSlotSlotrBr,r+)versionrAr.r-r/r'rrr import_pyqt4s     rLcCsxddlm}m}m}m}m}ddl}|j|_|j |_ t d}|j |j |j |j |j |j t}||||fS)zX Import PyQt5 ImportErrors rasied within this function are non-recoverable r)r-r/r0r.QtPrintSupportN QtGuiCompat)r r-r/r0r.rMrArGrHrIrJtypes ModuleType__dict__updater&)r-r/r0r.rMrArNr'rrr import_pyqt5s rScCs ddlm}m}m}|||tfS)zY Import PySide ImportErrors raised within this function are non-recoverable r)r.r-r/)r r.r-r/r%)r.r-r/rrr import_pyside!srTcCs\ddlm}m}m}m}m}td}|j |j|j |j|j |j|||t fS)zZ Import PySide2 ImportErrors raised within this function are non-recoverable r)r.r-r/r0rMrN) r r.r-r/r0rMrOrPrQrRr#)r.r-r/r0rMrNrrrimport_pyside2+s  rUcCstttttttttt tddt t tddi}t }|r<|g}x|D]V}||krrt d|d dd|Dft|s|qB||}|d}t||SWtd |tttttttt|fdS) a Import Qt, given a preference list of permissible bindings. It is safe to call this function multiple times. If a Qt binding has already been loaded, it will be returned regardless of the preference list. Parameters ---------- api_options: List of strings The order of APIs to try. Valid items are 'pyside2', '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 (because they aren't installed). rF)rKNz'Invalid Qt API %r, valid values are: %sz, cSsg|] }d|qS)z%rr).0krrr hszload_qt..a Could not load requested Qt binding. Please ensure that PyQt4 >= 4.7, PyQt5, PySide >= 1.0.3 or PySide2 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 PySide2 installed: %s Tried to load: %r )r#rUr%rTr+rLr&rSr,rrDr RuntimeErrorjoinkeysrEr(rr8)Z api_optionsloadersZloadedr'resultrrrload_qt<s6     r_cCsXt}|tkrddlm}n8|tkr2ddlm}n"|tkrHddlm}n ddlm}|S)z)Load QTest module from the loaded QT API.r)QTest) rr&Z PyQt5.QtTestr`r%Z PySide.QtTestr#ZPySide2.QtTestZ PyQt4.QtTest)r'r`rrr load_qtests ra)r))!r"rrO functoolsrZdistutils.versionrr r+r&r,rDr%r#r1objectrr$ meta_pathr;r(rr8r= version_infor*rErLrSrTrUr_rarrrr sD    ((  % I