python - How can I write this syntax if there is space in column name? -


how can write syntax if there space in column name "image_path"? instead of "image_path", have "image path". changed column name works. however, wondering if there way can write syntax without changing column name "image path" "image_path". 

(df.groupby('content_type').image_path.nunique())

thank you, shone

edit: in case answer below deleted:

df.groupby('content_type')['image path'].nunique()

use [...] indexer string:

df.groupby('content_type')['image path'].nunique()

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