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Given the following text description, write Python code to implement the functionality described below step by step
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Description:
 SAP CAR
The following subsections show a graphical representation of the file format portions and how to generate them.
First we need to perform some setup to import the packet classes
Step1:  SAPCAR Archive version 2.00
We first create a temporary file and compress it inside an archive file
Step2:  The file is comprised of the following main structures
Step3:  SAPCAR Entry Header
Step4:  SAPCAR Data Block
Step5:  SAPCAR Compressed Data
Step6:  SAPCAR Archive version 2.01
Step7:  The file is comprised of the following main structures
Step8:  SAPCAR Entry Header
Step9:  SAPCAR Data Block
Step10:  SAPCAR Compressed data
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Python Code:
from pysap.SAPCAR import *
from IPython.display import display
Explanation: SAP CAR
The following subsections show a graphical representation of the file format portions and how to generate them.
First we need to perform some setup to import the packet classes:
End of explanation
with open("some_file", "w") as fd:
    fd.write("Some string to compress")
f0 = SAPCARArchive("archive_file.car", mode="wb", version=SAPCAR_VERSION_200)
f0.add_file("some_file")
Explanation: SAPCAR Archive version 2.00
We first create a temporary file and compress it inside an archive file:
End of explanation
f0._sapcar.canvas_dump()
Explanation: The file is comprised of the following main structures:
SAPCAR Archive Header
End of explanation
f0._sapcar.files0[0].canvas_dump()
Explanation: SAPCAR Entry Header
End of explanation
f0._sapcar.files0[0].blocks[0].canvas_dump()
Explanation: SAPCAR Data Block
End of explanation
f0._sapcar.files0[0].blocks[0].compressed.canvas_dump()
Explanation: SAPCAR Compressed Data
End of explanation
f1 = SAPCARArchive("archive_file.car", mode="wb", version=SAPCAR_VERSION_201)
f1.add_file("some_file")
Explanation: SAPCAR Archive version 2.01
End of explanation
f1._sapcar.canvas_dump()
Explanation: The file is comprised of the following main structures:
SAPCAR Archive Header
End of explanation
f1._sapcar.files1[0].canvas_dump()
Explanation: SAPCAR Entry Header
End of explanation
f1._sapcar.files1[0].blocks[0].canvas_dump()
Explanation: SAPCAR Data Block
End of explanation
f1._sapcar.files1[0].blocks[0].compressed.canvas_dump()
from os import remove
remove("some_file")
remove("archive_file.car")
Explanation: SAPCAR Compressed data
End of explanation
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