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code improvementA feature request that will improve the software and its maintainability, but be invisible to users.A feature request that will improve the software and its maintainability, but be invisible to users.

dependenciesPull requests that update a dependency filePull requests that update a dependency file

performance 🐌Issues related to speed and memoryIssues related to speed and memory

Status: Open.

#860 In idaholab/MontePy;

· MicahGale opened on Dec 4, 2025

Consider alternatives to SLY long term for backend parser

code improvementA feature request that will improve the software and its maintainability, but be invisible to users.A feature request that will improve the software and its maintainability, but be invisible to users.

parsers are hardExamples of where MCNP syntax is complicated and should be simplified.Examples of where MCNP syntax is complicated and should be simplified.

performance 🐌Issues related to speed and memoryIssues related to speed and memory

Status: Open.

#432 In idaholab/MontePy;

· MicahGale opened on Jul 2, 2024

Add support for Just-In-Time parsing

feature requestAn issue that improves the user interface.An issue that improves the user interface.

parsers are hardExamples of where MCNP syntax is complicated and should be simplified.Examples of where MCNP syntax is complicated and should be simplified.

performance 🐌Issues related to speed and memoryIssues related to speed and memory

Status: Open.

#529 In idaholab/MontePy;

· MicahGale opened on Aug 30, 2024

Implement Just-in-Time concrete syntax trees

feature requestAn issue that improves the user interface.An issue that improves the user interface.

parsers are hardExamples of where MCNP syntax is complicated and should be simplified.Examples of where MCNP syntax is complicated and should be simplified.

performance 🐌Issues related to speed and memoryIssues related to speed and memory

Status: Open.

Feature

#816 In idaholab/MontePy;

· MicahGale opened on Oct 5, 2025