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Better Matplotlib support in Jupyter
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I want to turn off inline plots in Jupyter because it ruins/distorts the quality of the chart. Normally in Jupyter you just issue a
%matplotlib
in the beginning of your script to get the plot to pop in a separate window in much better quality.However doing this in Backtrader results in:
C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\backtrader\plot\__init__.py:30: UserWarning: This call to matplotlib.use() has no effect because the backend has already been chosen; matplotlib.use() must be called *before* pylab, matplotlib.pyplot, or matplotlib.backends is imported for the first time. The backend was *originally* set to 'Qt5Agg' by the following code: File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\runpy.py", line 193, in _run_module_as_main "__main__", mod_spec) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\runpy.py", line 85, in _run_code exec(code, run_globals) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel_launcher.py", line 16, in <module> app.launch_new_instance() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\traitlets\config\application.py", line 658, in launch_instance app.start() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\kernelapp.py", line 478, in start self.io_loop.start() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\zmq\eventloop\ioloop.py", line 177, in start super(ZMQIOLoop, self).start() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\tornado\ioloop.py", line 888, in start handler_func(fd_obj, events) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\tornado\stack_context.py", line 277, in null_wrapper return fn(*args, **kwargs) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\zmq\eventloop\zmqstream.py", line 440, in _handle_events self._handle_recv() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\zmq\eventloop\zmqstream.py", line 472, in _handle_recv self._run_callback(callback, msg) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\zmq\eventloop\zmqstream.py", line 414, in _run_callback callback(*args, **kwargs) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\tornado\stack_context.py", line 277, in null_wrapper return fn(*args, **kwargs) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\kernelbase.py", line 281, in dispatcher return self.dispatch_shell(stream, msg) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\kernelbase.py", line 232, in dispatch_shell handler(stream, idents, msg) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\kernelbase.py", line 397, in execute_request user_expressions, allow_stdin) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\ipkernel.py", line 208, in do_execute res = shell.run_cell(code, store_history=store_history, silent=silent) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\zmqshell.py", line 533, in run_cell return super(ZMQInteractiveShell, self).run_cell(*args, **kwargs) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2728, in run_cell interactivity=interactivity, compiler=compiler, result=result) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2850, in run_ast_nodes if self.run_code(code, result): File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2910, in run_code exec(code_obj, self.user_global_ns, self.user_ns) File "<ipython-input-1-d92e3213a0f2>", line 2, in <module> get_ipython().run_line_magic('matplotlib', '') File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2095, in run_line_magic result = fn(*args,**kwargs) File "<decorator-gen-108>", line 2, in matplotlib File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\magic.py", line 187, in <lambda> call = lambda f, *a, **k: f(*a, **k) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\magics\pylab.py", line 99, in matplotlib gui, backend = self.shell.enable_matplotlib(args.gui) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2978, in enable_matplotlib pt.activate_matplotlib(backend) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\pylabtools.py", line 308, in activate_matplotlib matplotlib.pyplot.switch_backend(backend) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\matplotlib\pyplot.py", line 232, in switch_backend matplotlib.use(newbackend, warn=False, force=True) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\matplotlib\__init__.py", line 1305, in use reload(sys.modules['matplotlib.backends']) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\importlib\__init__.py", line 166, in reload _bootstrap._exec(spec, module) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\matplotlib\backends\__init__.py", line 14, in <module> line for line in traceback.format_stack() matplotlib.use('TkAgg') C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\backtrader\plot\plot.py:127: UserWarning: This call to matplotlib.use() has no effect because the backend has already been chosen; matplotlib.use() must be called *before* pylab, matplotlib.pyplot, or matplotlib.backends is imported for the first time. The backend was *originally* set to 'Qt5Agg' by the following code: File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\runpy.py", line 193, in _run_module_as_main "__main__", mod_spec) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\runpy.py", line 85, in _run_code exec(code, run_globals) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel_launcher.py", line 16, in <module> app.launch_new_instance() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\traitlets\config\application.py", line 658, in launch_instance app.start() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\kernelapp.py", line 478, in start self.io_loop.start() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\zmq\eventloop\ioloop.py", line 177, in start super(ZMQIOLoop, self).start() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\tornado\ioloop.py", line 888, in start handler_func(fd_obj, events) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\tornado\stack_context.py", line 277, in null_wrapper return fn(*args, **kwargs) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\zmq\eventloop\zmqstream.py", line 440, in _handle_events self._handle_recv() File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\zmq\eventloop\zmqstream.py", line 472, in _handle_recv self._run_callback(callback, msg) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\zmq\eventloop\zmqstream.py", line 414, in _run_callback callback(*args, **kwargs) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\tornado\stack_context.py", line 277, in null_wrapper return fn(*args, **kwargs) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\kernelbase.py", line 281, in dispatcher return self.dispatch_shell(stream, msg) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\kernelbase.py", line 232, in dispatch_shell handler(stream, idents, msg) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\kernelbase.py", line 397, in execute_request user_expressions, allow_stdin) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\ipkernel.py", line 208, in do_execute res = shell.run_cell(code, store_history=store_history, silent=silent) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\ipykernel\zmqshell.py", line 533, in run_cell return super(ZMQInteractiveShell, self).run_cell(*args, **kwargs) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2728, in run_cell interactivity=interactivity, compiler=compiler, result=result) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2850, in run_ast_nodes if self.run_code(code, result): File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2910, in run_code exec(code_obj, self.user_global_ns, self.user_ns) File "<ipython-input-1-d92e3213a0f2>", line 2, in <module> get_ipython().run_line_magic('matplotlib', '') File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2095, in run_line_magic result = fn(*args,**kwargs) File "<decorator-gen-108>", line 2, in matplotlib File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\magic.py", line 187, in <lambda> call = lambda f, *a, **k: f(*a, **k) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\magics\pylab.py", line 99, in matplotlib gui, backend = self.shell.enable_matplotlib(args.gui) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\interactiveshell.py", line 2978, in enable_matplotlib pt.activate_matplotlib(backend) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\IPython\core\pylabtools.py", line 308, in activate_matplotlib matplotlib.pyplot.switch_backend(backend) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\matplotlib\pyplot.py", line 232, in switch_backend matplotlib.use(newbackend, warn=False, force=True) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\matplotlib\__init__.py", line 1305, in use reload(sys.modules['matplotlib.backends']) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\importlib\__init__.py", line 166, in reload _bootstrap._exec(spec, module) File "C:\Users\Soren\Anaconda3\envs\CCXTbt2\lib\site-packages\matplotlib\backends\__init__.py", line 14, in <module> line for line in traceback.format_stack() matplotlib.use('nbagg')
I should say that it does actually pop the chart in a new window but I would like to get rid of the errors in the trace. Any ideas?
What is Matplotlib instantiated as in Backtrader?
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@Paska-Houso said in Better Matplotlib support in Jupyter:
iplot=False
Sorry missed that one in the docs. Damm love this community !!! Thx!