Open laz file in read and write mode failed about laspy HOT 12 CLOSED

Laspy doesn't support rw for laz files, but should probably give a better error. Laz files are currently read-only.

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@Sajjadmanal
After installing laszip download laszip-cli.exe from here and add its path to the environment. This should solve your issue.
If the above link doesn't work than you can go to https://laszip.org and then brows down to Binaries; here you should see laszip-cli.exe, download it and add its path to the environment.

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Just a precision (i remarked this just now ...), it works with a las file

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Hmm, does it work on the las file which is equivalent to the laz file you're working with? That is, if you extract the laz file using lazip, does laspy read the result correctly?

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Yes, it's works with the same point cloud if it's a las but not a laz. And it's doesn't change if I extract a las file with laszip

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Can you replicate the error with version 1.5.1 from GitHub? (I just incremented the version because we got behind on that. There are some changes which haven't been deployed to the package index).

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i get the same when opening a laz file in rw mode.
laspy 1.5.1 is installed.

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good to know :)

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@grantbrown @arthur-leguennec How can I read .laz file using laspy? I am getting below error:
LaspyException: Error mapping file: Laszip was not found on the system

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Error says Laszip is missing. Install laszip and try again

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@niranjanreddy891 I installed laszip using :
conda install -c conda-forge laszip

I checked it is installed successfully using: conda list
Ran again but I gives me the same error.

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Closing as laspy 2.0 support writting LAZ files (However this is not done by opening in rw mode since laspy.File does not exists anymore)

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