I am fairly new to PyArrow and Arrow, so I may ask something stupid. I have read the documentation of the field() method, and as far as I understand I can say that a filed does not allow NULL values by specifying nullable=False. So, I have tried this example:

I have an array of ethereum addresses in hexadecimal format (20 bytes), encoded as an hexadecimal string. How can I transform that into a FixedSizeBinaryArray?

I have a basic pyarrow.Table. What’s the best way to get it’s size in bytes?

I have several thousand text files with methylation data in them. These are tab separated files, where I am only interested in two columns, the name of the methylation probe and a value in the column called “Beta”.