welly.to_las in welly 0.5.2 throwing error

[mohsenminaei]

I am using welly 0.5.2.

I just ran this code:

import welly
wells = welly.read_las(r"\samples\*.las")
wells[0].to_las('test.las')

And received the following error:

AttributeError                            Traceback (most recent call last)
[\lib\site-packages\welly\las.py](file:///lib/site-packages/welly/las.py) in to_lasio(well, keys, alias, basis, null_value, mnemonic_case)
    422         try:
--> 423             l.add_curve('DEPT', df_merged.index.values)
    424         except:

AttributeError: 'LASFile' object has no attribute 'add_curve'

During handling of the above exception, another exception occurred:

Exception                                 Traceback (most recent call last)
[~\AppData\Local\Temp\ipykernel_51576\944315332.py] in <module>
----> 1 wells[0].to_las('test.las')

[\lib\site-packages\welly\well.py](file:///lib/site-packages/welly/well.py) in to_las(self, fname, keys, basis, null_value, mnemonic_case, **kwargs)
    538         """
    539         with open(fname, 'w') as f:
--> 540             las = self.to_lasio(keys=keys, basis=basis, null_value=null_value, mnemonic_case=mnemonic_case)
    541             las.write(f, **kwargs)
    542 

[\lib\site-packages\welly\well.py](file:///lib/site-packages/welly/well.py) in to_lasio(self, keys, alias, basis, null_value, mnemonic_case)
    507             las (lasio.LASFile). The lasio object representation of a LAS file.
    508         """
...
--> 425             raise Exception("Please provide an index.")
    426 
    427         # Add meta from basis.

Exception: Please provide an index.

Then I went into the file welly/las.py and changed three instances of "add_curve" to "append_curve". The code started working. I may be wrong, but it seems that lasio has changed their function from add_cruve to append_curve.

[gavargas22]

I have fixed this issue on #237 temporarily I have a custom version whl that I can send your way @mohsenminaei