I'm trying to run spcchart on Python 2.7 environment and turn out an error "ValueError: Invalid PI name 'xml'". Error message attached and if anyone can tell where went wrong and how to fix it, thank you!
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Please *[copy-paste](https://superuser.com/questions/295370/how-to-copy-text-in-the-windows-command-line-cmd)* the error message into the question – Antti Haapala -- Слава Україні Aug 06 '17 at 21:41
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A screen shot is nice but not *sufficient*. – Antti Haapala -- Слава Україні Aug 06 '17 at 21:41
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1https://github.com/Kozea/pygal/issues/282 – Antti Haapala -- Слава Україні Aug 06 '17 at 21:45
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https://stackoverflow.com/questions/45520049/pygal-valueerror-invalid-pi-name-bxml – Antti Haapala -- Слава Україні Aug 06 '17 at 21:46
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This is a known bug in the package "pygal". The bug has been fixed, so upgrading to the latest version should fix the problem:
pip list --outdated
pip install pygal --upgrade
(source)
Check that the first command lists pygal to confirm that it is installed and out of date. Then use the second command to upgrade it.
tom
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Hi Tom, thanks for support and it seems the error fixed although some other issue with this spcchart program. – Michael C.H. Wang Aug 07 '17 at 01:13