Chilkat2-Python

Find a ZIP Entry by EntryID Using EntryById

See more Zip Examples

This example demonstrates how to use the EntryById method to retrieve a ZIP entry using its unique EntryID.

Each ZipEntry object has an EntryID property that uniquely identifies the entry within the currently open ZIP object.

This is useful when:

• An application stores EntryID values for later use
• ZIP entries need to be retrieved without searching by filename
• Multiple entries may have similar names or paths

The example:

• Opens a ZIP archive
• Retrieves an entry using EntryAt
• Saves the entry's EntryID
• Uses EntryById to retrieve the same entry later

Chilkat2-Python

import sys
import chilkat2

success = False

success = False

# Open an existing ZIP archive.
zip = chilkat2.Zip()

success = zip.OpenZip("example.zip")
if (success == False):
    print(zip.LastErrorText)
    sys.exit()

# Retrieve the first entry in the ZIP archive.
entry = chilkat2.ZipEntry()

success = zip.EntryAt(0,entry)
if (success == False):
    print(zip.LastErrorText)
    sys.exit()

print("Original entry:")
print("  FileName: " + entry.FileName)
print("  EntryID: " + str(entry.EntryID))
print("")

# Save the EntryID for later use.
entryId = entry.EntryID

# Create another ZipEntry object.
entry2 = chilkat2.ZipEntry()

# Retrieve the same entry using EntryById.
success = zip.EntryById(entryId,entry2)
if (success == False):
    print(zip.LastErrorText)
    sys.exit()

print("Entry retrieved by EntryID:")
print("  FileName: " + entry2.FileName)
print("  EntryID: " + str(entry2.EntryID))
print("")

# The filenames and EntryID values should match.
zip.CloseZip()

print("Done.")