mirror of https://github.com/python/cpython
20 lines
569 B
Python
20 lines
569 B
Python
import sqlite3
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con = sqlite3.connect(":memory:")
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con.execute("create table test(blob_col blob)")
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con.execute("insert into test(blob_col) values (zeroblob(13))")
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# Write to our blob, using two write operations:
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with con.blobopen("test", "blob_col", 1) as blob:
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blob.write(b"hello, ")
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blob.write(b"world.")
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# Modify the first and last bytes of our blob
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blob[0] = ord("H")
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blob[-1] = ord("!")
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# Read the contents of our blob
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with con.blobopen("test", "blob_col", 1) as blob:
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greeting = blob.read()
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print(greeting) # outputs "b'Hello, world!'"
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