49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
## Do all Qt imports from here to allow easier PyQt / PySide compatibility
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import sys, re
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## Automatically determine whether to use PyQt or PySide.
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## This is done by first checking to see whether one of the libraries
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## is already imported. If not, then attempt to import PyQt4, then PySide.
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if 'PyQt4' in sys.modules:
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USE_PYSIDE = False
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elif 'PySide' in sys.modules:
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USE_PYSIDE = True
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else:
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try:
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import PyQt4
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USE_PYSIDE = False
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except ImportError:
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try:
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import Pyside
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USE_PYSIDE = True
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except ImportError:
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raise Exception("PyQtGraph requires either PyQt4 or PySide; neither package could be imported.")
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if USE_PYSIDE:
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from PySide import QtGui, QtCore, QtOpenGL, QtSvg
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import PySide
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VERSION_INFO = 'PySide ' + PySide.__version__
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else:
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from PyQt4 import QtGui, QtCore
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try:
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from PyQt4 import QtSvg
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except ImportError:
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pass
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try:
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from PyQt4 import QtOpenGL
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except ImportError:
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pass
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QtCore.Signal = QtCore.pyqtSignal
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VERSION_INFO = 'PyQt4 ' + QtCore.PYQT_VERSION_STR + ' Qt ' + QtCore.QT_VERSION_STR
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## Make sure we have Qt >= 4.7
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versionReq = [4, 7]
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QtVersion = PySide.QtCore.__version__ if USE_PYSIDE else QtCore.QT_VERSION_STR
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m = re.match(r'(\d+)\.(\d+).*', QtVersion)
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if m is not None and map(int, m.groups()) < versionReq:
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print map(int, m.groups())
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raise Exception('pyqtgraph requires Qt version >= %d.%d (your version is %s)' % (versionReq[0], versionReq[1], QtVersion))
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