Is there a nice way to switch between 2 different packages providing the same APIs?
Antoon Pardon
antoon.pardon at vub.be
Fri Jul 6 03:54:28 EDT 2018
On 05-07-18 14:57, Mark Summerfield via Python-list wrote:
> For GUI programming I often use Python bindings for Qt.
>
> There are two competing bindings, PySide and PyQt.
>
> Ideally I like to have applications that can use either. This way, if I get a problem I can try with the other bindings: if I still get the problem, then it is probably me; but if I don't it may be an issue with the bindings.
>
> But working with both means that my imports are very messy. Here's a tiny example:
>
> if PYSIDE: # bool True -> Use PySide; False -> Use PyQt5
> from PySide2.QtCore import Qt
> from PySide2.QtGui import QIcon
> from PySide2.QtWidgets import (
> QDialog, QFrame, QGridLayout, QLabel, QLineEdit, QPushButton,
> QVBoxLayout)
> else:
> from PyQt5.QtCore import Qt
> from PyQt5.QtGui import QIcon
> from PyQt5.QtWidgets import (
> QDialog, QFrame, QGridLayout, QLabel, QLineEdit, QPushButton,
> QVBoxLayout)
>
> The PYSIDE constant is imported from another module and is used for all .py files in a given project so that just by changing PYSIDE's value I can run an entire application with PySide2 or with PyQt5.
The following is untested but what about
if PYSIDE:
import PySide2 as PyQt
else:
import PyQt5 as PyQt
Qt = PyQt.QtCore.Qt
QIcon = PyQt.QtGui.QIcon
...
--
Antoon Pardon
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