compression.
How It Works
compression.zstd adds Zstandard compression to the standard library, starting with Python 3.14. It offers in-memory helpers, incremental compressors, decompression tools, and file interfaces. Builds may omit this optional module.
Step-by-Step Example
from compression import zstd
source_bytes = b'row,value\n' * 300
compressed_bytes = zstd.compress(source_bytes)
print(zstd.decompress(compressed_bytes) == source_bytes)Understanding the Example
- The expression "b'row,value\\n' * 300" supplies the value stored as 'source_bytes'. This value is then used or checked by the later statements.
- The expression 'zstd.compress(source_bytes)' supplies the value stored as 'compressed_bytes'. This value is then used or checked by the later statements.
This example requires a newer interpreter or an optional standard-library component. If the import or function is unavailable, check the installed version and distribution before running it.
Where This Fits in a Real Program
A practical archive workflow has separate decisions for selection, compression, extraction and verification. When files come from other people, inspect paths, member counts and uncompressed sizes before writing anything; a successful decompression does not establish that its contents are trustworthy.
Practice: Try It Yourself
Compare the sizes of Zstandard and gzip output for repeated text.
For this exercise, predict the result before running the changed code. Then explain the difference between the original and modified cases using the actual values, not just whether the program completed.
Further Reading
Read the official Python documentation for complete parameters, return types and exceptions.
Common Beginner Mistakes
- Assuming every Python distribution includes compression.zstd or confusing Zstandard with zlib-format data.
- This sample requires a Python build that includes the optional compression.zstd module.
Key Takeaways
- compression.
- compression.zstd adds Zstandard compression to the standard library, starting with Python 3.14.
- This sample requires a Python build that includes the optional compression.zstd module.