- 1 year ago
Python reading tempfile after creating with suffix option produces an error
When creating a temporary file in Python using the tempfile
module with the suffix
option, you may run into an error when trying to read the contents of the file. This is because the suffix
option appends a suffix to the file name, which can affect the file extension and cause the file to be unreadable by certain programs.
To read the contents of a temporary file created with the suffix
option, you can use the NamedTemporaryFile
method instead. Here's an example:
pythonimport tempfile
# Create a temporary file with the suffix option
temp_file = tempfile.NamedTemporaryFile(suffix='.txt')
# Write some data to the file
temp_file.write('Hello, world!\n'.encode())
# Flush and close the file
temp_file.flush()
temp_file.close()
# Open the file for reading
with open(temp_file.name, 'r') as file:
# Read the contents of the file
contents = file.read()
print(contents)
In this example, we use the NamedTemporaryFile
method to create a temporary file with the .txt
suffix. We then write some data to the file, flush and close the file, and open it for reading using the open
method. We can then read the contents of the file using the read
method.
By using NamedTemporaryFile
instead of the TemporaryFile
method with the suffix
option, we can avoid issues with file extensions and ensure that the file is readable by any program that supports the file format.