List index out of range

[SARITHA]

Continuing the discussion from Snap Error Opening Manifest. safe error:

PREPROCESSING - Jupyter Notebook.pdf (291.4 KB)
hello sir, when am going to do the preprocessing of sentinel1 data, I get a" list index out of range " error can you please help me with this
thank you in advance

[diana_harosa]

Dear @SARITHA

We are currently investigating this issue and will get back to you as soon as possible.

[dolaf]

Dear user SARITHA,

we checked your notebook and found the following issues which need to be fixed:

1. product_path = "E:\sun\S1A_IW_SLC__1SDV_20230729T010329_20230729T010357_049631_05F7D5_8E7C.zip“
   → From the following code we assume that you might have several input_S1_files (*.zip) in the product path, so this should just be ‘E:\sun’ here. And better use OS separator: ‘E’ + os.sep + ‘sun’ .

2. input_S1_files = sorted(…) : most important: remove the blank between ‘S1 and .zip’! (Otherwise, your lists will always be empty. The bug does not produce an error, so it took me a while to notice that…)

3. with zipfile(input_S1_files[0], ‘r’) as qck_look:
   The imported module zipfile is not callable. You need to import and call the class ZipFile like this:
   from zipfile import ZipFile
   …
   with ZipFile(input_S1_files[0], ‘r’) as qck_look:

Running a modified notebook with these fixes terminates successfully, the output from my example product looks as in the attached figure.

Cheers,
Olaf