- Added support for PyQt.

- Refactored widgets to catch ModuleNotFoundErrors.

lightweight_charts/__init__.py

@@ -1,8 +1,4 @@
 from .chart import Chart
 from .js import LWC
 
-try:
-    import wx.html2
-    from .widgets import WxChart
-except:
-    pass
+

lightweight_charts/widgets.py

@@ -1,14 +1,22 @@
-from lightweight_charts.js import LWC
 try:
     import wx.html2
 except ImportError:
     pass
+try:
+    from PyQt5.QtWebEngineWidgets import QWebEngineView
+except ImportError:
+    pass
+
+from lightweight_charts.js import LWC
 
 
 class WxChart(LWC):
     def __init__(self, parent, volume_enabled=True):
         super().__init__(volume_enabled)
-        self.webview = wx.html2.WebView.New(parent)
+        try:
+            self.webview = wx.html2.WebView.New(parent)
+        except NameError:
+            raise ModuleNotFoundError('wx.html2 was not found, and must be installed to use WxChart.')
 
         self.webview.Bind(wx.html2.EVT_WEBVIEW_LOADED, self._on_js_load)
         self.webview.SetPage(self._html, '')
@@ -17,7 +25,7 @@ class WxChart(LWC):
 
     def run_script(self, script): self.webview.RunScript(script)
 
-    def _on_js_load(self, e: wx.html2.WebViewEvent):
+    def _on_js_load(self, e):
         if not self.second_load:
             self.second_load = True
             return
@@ -25,4 +33,26 @@ class WxChart(LWC):
         for func, args, kwargs in self.js_queue:
             getattr(super(), func)(*args, **kwargs)
 
-    def get_webview(self): return self.webview
+    def get_webview(self): return self.webview
+
+
+class QtChart(LWC):
+    def __init__(self, widget=None, volume_enabled=True):
+        super().__init__(volume_enabled)
+        try:
+            self.webview = QWebEngineView(widget)
+        except NameError:
+            raise ModuleNotFoundError('QWebEngineView was not found, and must be installed to use QtChart.')
+
+        self.webview.loadFinished.connect(self._on_js_load)
+        self.webview.page().setHtml(self._html)
+
+    def run_script(self, script): self.webview.page().runJavaScript(script)
+
+    def _on_js_load(self):
+        self.loaded = True
+        for func, args, kwargs in self.js_queue:
+            getattr(super(), func)(*args, **kwargs)
+
+    def get_webview(self): return self.webview
+