Read xlsx. File from managed folder using Python

ShGH

Hi team,

I'm using a Python recipe in Dataiku to read a specific .xlsx file from a managed folder, but I'm encountering an error when trying to load the file into a DataFrame.

Here’s a simplified version of my code:

folder = dataiku.Folder("FOLDER_ID")
file_list = folder.list_paths_in_partition()
last_month_str = "YYYYMM"  # Format looks like this
pattern = re.compile(r"^/FILENAME (\d{6}).*.xlsx$", re.IGNORECASE)

for file_path in file_list:
  match = pattern.match(file_path)
  if match and match.group(1) == last_month_str:
    with folder.get_download_stream(file_path) as stream:
      file_content = stream.read()
      df = pd.read_excel(io.BytesIO(file_content), header=2)

Error:

Error in Python process: At line 29: <class 'ImportError'>: Missing optional dependency 'xlrd'. Install xlrd >= 2.0.1 for xls Excel support Use pip or conda to install xlrd.

Thanks in advance

Shirin

Operating system used: Windows

Operating system used: Windows

Yasmine_T

Hi:)

I hope that you are doing well. Thank you very much for reaching out.

In your code we can see the following

df = pd.read_excel(io.BytesIO(file_content), header=2)

If you don't specify an engine to be used above, the xldr is used by default (see: https://pandas.pydata.org/docs/reference/api/pandas.read_excel.html)

Note that xlrd removed support for anything other than .xls files from version 2.0 (docs), hence you will need to use xlrd <1.2.0 in your code to be able to read xlsx files or you will need to specify openpyxl engine to be used.

So the error you are seeing is :

"Error in Python process: At line 29: <class 'ImportError'>: Missing optional dependency 'xlrd'. Install xlrd >= 2.0.1 for xls Excel support Use pip or conda to install xlrd."

From a first look and without more background on your installation this error is pretty straight forward you are simply missing a dependency since in your code you are not specifying any engine, xlrd is used (hence why it refers to xls excel in the error message as well)

Here i would recommend you to specify the engine to use to be openpyxl and install it in your code environment. You can do so following previous guidance:

https://community.dataiku.com/discussion/28585/python-recipe-question

Best,

Yasmine

ShGH

Hi Yasmin,

Thanks for your clear explanation. It helps a lot. :)