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Archived discussions · Captured October 28, 2026

Issue with Python Launcher and ".core.json_encoder import serialize_json" => no numpy found !

Community Support
Remi_Toudic
Remi_Toudic

Hey Everybody ,
I wonder if it comes to me or if it is a technical issue from Bokeh.

From Python Launcher I start a script with a couple of plots and data table and I get a error telling me that

“No module named numpy” in “…site-packages/bokeh/core/json_encoder.py”

My code ist running fine when I start it from Sypder (Anaconda) I have macbook.

Has someone an idea why it can’t run my code properly from the Python Launcher or can give me a alternative

Thank you in advance

Rémi

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Tyler_Nickerson
Tyler_Nickerson

It sounds like your system’s PATH could be pointing to a version of python that is not part of your Anaconda distribution. If you run which python from your terminal, do you get the path for your Anaconda distribution?

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On Tue, Jan 31, 2017 at 3:45 AM, Rémi Toudic remitoudic@gmail.com wrote:

Hey Everybody ,
I wonder if it comes to me or if it is a technical issue from Bokeh.

From Python Launcher I start a script with a couple of plots and data table and I get a error telling me that

“No module named numpy” in “…site-packages/bokeh/core/json_encoder.py”

My code ist running fine when I start it from Sypder (Anaconda) I have macbook.

Has someone an idea why it can’t run my code properly from the Python Launcher or can give me a alternative

Thank you in advance

Rémi

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