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What does this PR do ?

Add import guards for mcore lightning module

After adding one logger across the repo, it's importing the lightning module in ASR. However, this also assumes that MCore is installed. ASR does not need MCore, so we import guard MCore in the lightning module for now.

Changelog

  • Add import guards for mcore lightning module

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  • You can potentially add a usage example below
# Add a code snippet demonstrating how to use this 

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    • Reviewer: Does the PR have correct import guards for all optional libraries?

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  • Related to # (issue)

Signed-off-by: Charlie Truong <[email protected]>
nithinraok
nithinraok previously approved these changes Oct 23, 2025
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Quick fix LGTM, however these need to be updated accordingly. There is no need to import Megatron core related packages while using OneLogger

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Should we add a pip install .['asr'] and also check for successful import after the install?

Signed-off-by: Charlie Truong <[email protected]>
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[🤖]: Hi @chtruong814 👋,

We wanted to let you know that a CICD pipeline for this PR just finished successfully.

So it might be time to merge this PR or get some approvals.

//cc @chtruong814 @ko3n1g @pablo-garay @thomasdhc

@chtruong814 chtruong814 merged commit 55635b9 into main Oct 24, 2025
270 of 277 checks passed
@chtruong814 chtruong814 deleted the chtruong/import-guard-mcore branch October 24, 2025 18:45
@chtruong814 chtruong814 added the r2.6.0 Cherry-pick label for the r2.6.0 release branch label Oct 24, 2025
chtruong814 added a commit that referenced this pull request Oct 24, 2025
* Add import guards for mcore lightning module

Signed-off-by: Charlie Truong <[email protected]>

* Apply isort and black reformatting

Signed-off-by: chtruong814 <[email protected]>

* Add import guard for Apex

Signed-off-by: Charlie Truong <[email protected]>

* Add asr install checker

Signed-off-by: Charlie Truong <[email protected]>

---------

Signed-off-by: Charlie Truong <[email protected]>
Signed-off-by: chtruong814 <[email protected]>
Co-authored-by: chtruong814 <[email protected]>
Signed-off-by: NeMo Bot <[email protected]>
@chtruong814 chtruong814 added r2.5.0 Cherry-pick label for the 2.5.0 release and removed r2.6.0 Cherry-pick label for the r2.6.0 release branch labels Oct 24, 2025
@chtruong814 chtruong814 restored the chtruong/import-guard-mcore branch October 24, 2025 21:40
chtruong814 added a commit that referenced this pull request Oct 24, 2025
* Add import guards for mcore lightning module

Signed-off-by: Charlie Truong <[email protected]>

* Apply isort and black reformatting

Signed-off-by: chtruong814 <[email protected]>

* Add import guard for Apex

Signed-off-by: Charlie Truong <[email protected]>

* Add asr install checker

Signed-off-by: Charlie Truong <[email protected]>

---------

Signed-off-by: Charlie Truong <[email protected]>
Signed-off-by: chtruong814 <[email protected]>
Co-authored-by: chtruong814 <[email protected]>
Signed-off-by: Charlie Truong <[email protected]>
chtruong814 added a commit that referenced this pull request Oct 27, 2025
…5.0` (#14982)

* Add import guards for mcore lightning module (#14970)

* Add import guards for mcore lightning module

Signed-off-by: Charlie Truong <[email protected]>

* Apply isort and black reformatting

Signed-off-by: chtruong814 <[email protected]>

* Add import guard for Apex

Signed-off-by: Charlie Truong <[email protected]>

* Add asr install checker

Signed-off-by: Charlie Truong <[email protected]>

---------

Signed-off-by: Charlie Truong <[email protected]>
Signed-off-by: chtruong814 <[email protected]>
Co-authored-by: chtruong814 <[email protected]>
Signed-off-by: Charlie Truong <[email protected]>

* Apply isort and black reformatting

Signed-off-by: chtruong814 <[email protected]>

---------

Signed-off-by: Charlie Truong <[email protected]>
Signed-off-by: chtruong814 <[email protected]>
Co-authored-by: chtruong814 <[email protected]>
chtruong814 added a commit that referenced this pull request Nov 4, 2025
* Add import guards for mcore lightning module



* Apply isort and black reformatting



* Add import guard for Apex



* Add asr install checker



---------

Signed-off-by: Charlie Truong <[email protected]>
Signed-off-by: chtruong814 <[email protected]>
Signed-off-by: NeMo Bot <[email protected]>
Co-authored-by: chtruong814 <[email protected]>
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4 participants