How to compress a string, and get a string back using zlib in python?

How to compress a string, and get a string back using zlib in python?

You can compress a string and then decompress it using the zlib module in Python. Here's how you can do it:

import zlib

# String to be compressed
original_string = "This is a sample string to be compressed."

# Compress the string
compressed_data = zlib.compress(original_string.encode())

# Decompress the string
decompressed_data = zlib.decompress(compressed_data)

# Convert the decompressed bytes back to a string
decompressed_string = decompressed_data.decode()

# Print the original, compressed, and decompressed strings
print("Original string:", original_string)
print("Compressed data:", compressed_data)
print("Decompressed string:", decompressed_string)

In this example:

  1. We import the zlib module.

  2. The original_string variable contains the string you want to compress.

  3. We use zlib.compress() to compress the string. We encode the string to bytes using .encode() before compression.

  4. compressed_data contains the compressed binary data.

  5. We use zlib.decompress() to decompress the compressed data, which gives us a bytes object.

  6. We decode the decompressed bytes back to a string using .decode() to get the decompressed_string.

  7. Finally, we print the original, compressed, and decompressed strings to verify the process.

Keep in mind that zlib compression is a lossless compression algorithm, which means you can safely compress and decompress data without any loss of information.

Examples

  1. "Python zlib compress string example" Description: Learn how to compress a string using the zlib library in Python. Code:

    import zlib

# String to compress
original_string = "This is the string to compress."

# Compress the string
compressed_string = zlib.compress(original_string.encode())

print("Compressed string:", compressed_string)

  2. "Python zlib decompress string example" Description: Understand how to decompress a string using zlib in Python. Code:

    import zlib

# Compressed string
compressed_string = b'x\x9c+\xcf/I\xad\x02\x00\x04\xdc\xd5'

# Decompress the string
decompressed_string = zlib.decompress(compressed_string)

print("Decompressed string:", decompressed_string.decode())

  3. "Python zlib compress and decompress string" Description: Perform both compression and decompression of a string using zlib in Python. Code:

    import zlib

# String to compress
original_string = "This is the string to compress."

# Compress the string
compressed_string = zlib.compress(original_string.encode())

print("Compressed string:", compressed_string)

# Decompress the string
decompressed_string = zlib.decompress(compressed_string)

print("Decompressed string:", decompressed_string.decode())

  4. "Python zlib compress string to bytes" Description: Convert a compressed string to bytes using zlib in Python. Code:

    import zlib

# String to compress
original_string = "This is the string to compress."

# Compress the string
compressed_bytes = zlib.compress(original_string.encode())

print("Compressed bytes:", compressed_bytes)

  5. "Python zlib decompress bytes to string" Description: Convert decompressed bytes to a string using zlib in Python. Code:

    import zlib

# Compressed bytes
compressed_bytes = b'x\x9c+\xcf/I\xad\x02\x00\x04\xdc\xd5'

# Decompress the bytes
decompressed_string = zlib.decompress(compressed_bytes)

print("Decompressed string:", decompressed_string.decode())

  6. "Python zlib compress string and return as string" Description: Compress a string and return the compressed data as a string using zlib in Python. Code:

    import zlib

# String to compress
original_string = "This is the string to compress."

# Compress the string and return as string
compressed_string = zlib.compress(original_string.encode()).decode('latin1')

print("Compressed string:", compressed_string)

  7. "Python zlib decompress string and return as string" Description: Decompress a string and return the decompressed data as a string using zlib in Python. Code:

    import zlib

# Compressed string
compressed_string = 'x\x9c+\xcf/I\xad\x02\x00\x04\xdc\xd5'

# Decompress the string and return as string
decompressed_string = zlib.decompress(compressed_string.encode('latin1')).decode()

print("Decompressed string:", decompressed_string)

  8. "Python zlib compress and decompress string with different levels" Description: Compress and decompress a string with different compression levels using zlib in Python. Code:

    import zlib

# String to compress
original_string = "This is the string to compress."

# Compress the string with different compression levels
compressed_low = zlib.compress(original_string.encode(), level=1)
compressed_high = zlib.compress(original_string.encode(), level=9)

print("Compressed string (Low level):", compressed_low)
print("Compressed string (High level):", compressed_high)

# Decompress the strings
decompressed_low = zlib.decompress(compressed_low)
decompressed_high = zlib.decompress(compressed_high)

print("Decompressed string (Low level):", decompressed_low.decode())
print("Decompressed string (High level):", decompressed_high.decode())

  9. "Python zlib compress string and return base64 encoded" Description: Compress a string, then encode it using base64 in Python. Code:

    import zlib
import base64

# String to compress
original_string = "This is the string to compress."

# Compress the string and return as base64 encoded string
compressed_bytes = zlib.compress(original_string.encode())
base64_encoded = base64.b64encode(compressed_bytes)

print("Base64 encoded compressed string:", base64_encoded.decode())

  10. "Python zlib decompress base64 encoded string" Description: Decompress a base64 encoded string using zlib in Python. Code:

    import zlib
import base64

# Base64 encoded compressed string
base64_encoded = b'eJwzNDQ3MTEzNTF0sDCwNDIwtDCwszAwBpA3gg=='

# Decode base64 and decompress
compressed_bytes = base64.b64decode(base64_encoded)
decompressed_string = zlib.decompress(compressed_bytes)

print("Decompressed string:", decompressed_string.decode())

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