ELOG How-To

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Entry time:	Tue Feb 3 10:53:37 2026
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<p> <table width="98%" align="center" cellspacing="1" style="border:1px solid #486090;"> <tbody> <tr> <td cellpadding="3px" style="background-color:#486090; font-weidht:bold; color:white;">Quote:</td></tr> <tr> <td cellpadding="10px" style="background-color:#FFFFB0;"><p>In order to get PyROOT working for Python 3, you must build ROOT with a flag that specifies Python 3 in the installation.  This method will create a folder titled <em>root-6.16.00 </em>in your current directory, so organize things how you see fit. Then the steps are relatively simple:</p> <p style="margin-left:40px">wget https://root.cern/download/root_v6.16.00.source.tar.gz<br /> tar -zxf root_v6.16.00.source.tar.gz<br /> cd root-6.16.00<br /> mkdir obj<br /> cd obj<br /> cmake .. -Dminuit2=On -Dpython3=On<br /> make -j8</p> <p>If you wish to do a different version of ROOT, the steps should be the same:</p> <p style="margin-left:40px">wget https://root.cern/download/root_v<version>.source.tar.gz<br /> tar -zxf root_v<version>.source.tar.gz<br /> cd root-<version><br /> mkdir obj<br /> cd obj<br /> cmake .. -Dminuit2=On -Dpython3=On<br /> make -j8</p></td> </tr> </tbody> </table> </p><p> </p> Encoding: HTML ELCode plain Suppress Email notification

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