CkPython

Extract a Single ZIP Entry While Preserving Its Stored Path

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This example demonstrates how to use the ZipEntry.Extract method to extract a single entry from a ZIP archive.

The example first creates a ZIP archive containing a text file. It then re-opens the ZIP, finds the entry, and extracts it to a base directory.

The Extract method uses the relative path stored within the ZIP entry. Any required subdirectories are created automatically beneath the specified base directory.

CkPython

import sys
import chilkat

success = False

# ------------------------------------------------------------
# First create a sample ZIP archive containing a small text file.

zip = chilkat.CkZip()

success = zip.NewZip("c:/temp/sampleText.zip")
if (success == False):
    print(zip.lastErrorText())
    sys.exit()

# Add a small text file from memory.
success = zip.AddString("myApp/docs/hello.txt","Hello from a ZIP entry!","utf-8")
if (success == False):
    print(zip.lastErrorText())
    sys.exit()

# Write the ZIP archive to disk and close it.
success = zip.WriteZipAndClose()
if (success == False):
    print(zip.lastErrorText())
    sys.exit()

# ------------------------------------------------------------
# Now open the ZIP archive we just created.

zip2 = chilkat.CkZip()

success = zip2.OpenZip("c:/temp/sampleText.zip")
if (success == False):
    print(zip2.lastErrorText())
    sys.exit()

# Find the entry by its stored ZIP path.
entry = chilkat.CkZipEntry()

success = zip2.EntryOf("myApp/docs/hello.txt",entry)

if (success == False):
    print("Entry not found.")
    sys.exit()

# Extract this single entry to the base directory:
# 
#     c:/temp/extracted
# 
# Because the entry's stored path is:
# 
#     myApp/docs/hello.txt
# 
# the file will be extracted to:
# 
#     qa_output/extracted/myApp/docs/hello.txt
# 
# The required subdirectories are created automatically.
success = entry.Extract("c:/temp/extracted")
if (success == False):
    print(entry.lastErrorText())
    sys.exit()

zip2.CloseZip()

print("Entry extracted successfully.")