CkPython Requires Chilkat v11.0.0+

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

CkPython

import sys
import chilkat

success = False

#  Open an existing ZIP archive.
zip = chilkat.CkZip()

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

#  Retrieve the first entry in the ZIP archive.
entry = chilkat.CkZipEntry()

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

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

#  Save the EntryID for later use.
entryId = entry.get_EntryID()

#  Create another ZipEntry object.
entry2 = chilkat.CkZipEntry()

#  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.get_EntryID()))
print("")

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

print("Done.")