Help with Tempfile Required

[KirkmanJ]

I plan to use tempfile to read a pdf file and store it. Then open the file in a DIFFERENT function and upload it to a flask table as a BLOB.

I currently have the following code which I THINK would upload multiple files to the tempfile 'storage', ( This is untested so I do not know if the files would just overwrite each over, and thus when I go to read them there would only be 1 )

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def 1 ...   for file in uploaded_files:    if allowed_file(file.filename):        temp_filename = secure_filename(file.filename)        filenames.append(temp_filename)        my_temp_file=tempfile.NamedTemporaryFile(delete=False)        file.save(my_temp_file)        file.temp_name=my_temp_file.name ...

I then want to access the tempfile 'storage' in a 2nd function. Something along the lines of:

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def 2 ... for name in filenames:     actual_file=open(temp.name, 'rb')

I had been previously using globals to do this but figured out that my database will be used by multiple people, which of cause means globals are a huge no no.

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for file in pdf_values:    actual_file=open(file.temp_name, 'rb')

Where pdf_values is a global set by : set_pdf_values(uploaded_files) .

I do not know if the tempfile method is the correct way of solving this issue, I assume i am missing an import in the 2nd function, or a specific way of opening the tempfiles. Anyone who has an idea on how to solve this error or can point me to helpful documentation with examples I would be very grateful.

Jack

[micseydel]

Anyone who has an idea on how to solve this error

Can you post the error?

[KirkmanJ]

Sorry its been a while, been really busy.

So i have troubleshooted this error a little and these are my findings:

If I use the code:

1 2	for name in filenames:     actual_file=open(name.temp_name, 'rb')

This is the error message shown:

actual_file=open(name.temp_name, 'rb')
AttributeError: 'str' object has no attribute 'temp_name'

If I try and save uploaded_files as a session variable to avoid the use of globals with the following code:

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def 1 ... session['uploaded_files'] = uploaded_files ...

I get the error message:
TypeError: <FileStorage: u'1.3MB.pdf' ('application/pdf')> is not JSON serializable

If I try to upload my_temp_files as a session vaiable:

1	session['my_temp_file'] =my_temp_file

I get the same error message as above:
TypeError: <FileStorage: u'1.3MB.pdf' ('application/pdf')> is not JSON serializable

I have also thought about using the 'send_file' flask command but do not know if this is a possibility.