Python zipfile 全攻略：實作讀寫、解壓、重建，以及 write/writestr 的正確用法; with zipfile.ZipFile(zip_path, mode=”r”) as z: print(z.namelist()) ; z.infolist()

from pathlib import Path
import zipfile

zip_path = Path(r"D:\Temp\sample.zip")

with zipfile.ZipFile(zip_path, mode="r") as z:
    # 所有檔名
    print(z.namelist())

    # 更詳細：每個 ZipInfo
    for info in z.infolist():
        print(f"{info.filename:45} size={info.file_size} "
              f"compressed={info.compress_size} method={info.compress_type}")

with zipfile.ZipFile(zip_path, "r") as z:
    raw = z.read("word/document.xml")      # bytes
    text = raw.decode("utf-8", errors="replace")
    print(text[:500])  # 只看前 500 個字元

from pathlib import Path

def safe_extractall(z: zipfile.ZipFile, dest: Path):
    dest = dest.resolve()
    for member in z.infolist():
        target = (dest / member.filename).resolve()
        if not str(target).startswith(str(dest)):
            raise RuntimeError(f"Blocked unsafe path: {member.filename}")
        z.extract(member, dest)

out_dir = Path(r"D:\Temp\out")
with zipfile.ZipFile(zip_path, "r") as z:
    safe_extractall(z, out_dir)

from pathlib import Path
import zipfile

src = Path(r"D:\Temp\sample.zip")
dst = Path(r"D:\Temp\sample_new.zip")

# 先準備一個要加入的磁碟檔案
readme_path = Path(r"D:\Temp\README.txt")
readme_path.write_text("This README is from filesystem.\n", encoding="utf-8")

with zipfile.ZipFile(src, "r") as zin, \
     zipfile.ZipFile(dst, "w", compression=zipfile.ZIP_DEFLATED, compresslevel=6) as zout:

    # 複製原有內容（保持壓縮法與時間）
    for info in zin.infolist():
        zout.writestr(info, zin.read(info.filename))

    # 用 write：來源是磁碟檔，arcname 決定在 ZIP 的路徑
    zout.write(readme_path, arcname="notes/README_from_disk.txt")

import zipfile
from pathlib import Path

dst = Path(r"D:\Temp\sample_mem.zip")

with zipfile.ZipFile(Path(r"D:\Temp\sample.zip"), "r") as zin, \
     zipfile.ZipFile(dst, "w", compression=zipfile.ZIP_DEFLATED, compresslevel=6) as zout:

    # 複製原始內容
    for info in zin.infolist():
        zout.writestr(info, zin.read(info.filename))

    # 文字（str）— 會自動以 UTF-8 編碼
    zout.writestr("notes/guide.md",
                  "# 使用說明\n\n這是一段由 writestr 動態產生的內容。\n")

    # 位元組（bytes）— 原樣寫入
    fake_png = b"\x89PNG\r\n\x1a\n" + b"\x00" * 64  # 只是示例，不是真正的 PNG
    zout.writestr("media/placeholder.png", fake_png)

import time, stat, zipfile
from pathlib import Path

dst = Path(r"D:\Temp\sample_meta.zip")

with zipfile.ZipFile(Path(r"D:\Temp\sample.zip"), "r") as zin, \
     zipfile.ZipFile(dst, "w") as zout:

    # 複製
    for info in zin.infolist():
        zout.writestr(info, zin.read(info.filename))

    # 建立 ZipInfo 並自訂屬性
    info = zipfile.ZipInfo("bin/run.sh")
    info.date_time = time.localtime(1730000000)[:6]  # 自訂時間
    info.compress_type = zipfile.ZIP_DEFLATED
    info.external_attr = (stat.S_IFREG | 0o755) << 16  # Unix 可執行

    content = b"#!/usr/bin/env bash\necho Hello\n"
    zout.writestr(info, content)

from pathlib import Path
import zipfile

def rebuild_without_media(src: Path, dst: Path):
    with zipfile.ZipFile(src, "r") as zin, \
         zipfile.ZipFile(dst, "w", compression=zipfile.ZIP_DEFLATED) as zout:
        for info in zin.infolist():
            if info.filename.startswith("word/media/"):
                # 跳過，等於刪除
                continue
            data = zin.read(info.filename)
            # 以原 ZipInfo 寫回，保留時間與屬性
            zout.writestr(info, data)

rebuild_without_media(Path(r"D:\Temp\sample.zip"), Path(r"D:\Temp\sample_nopic.zip"))

import zipfile
from pathlib import Path

src = Path(r"D:\Temp\sample.zip")
dst = Path(r"D:\Temp\sample_edit.zip")

with zipfile.ZipFile(src, "r") as zin, \
     zipfile.ZipFile(dst, "w", compression=zipfile.ZIP_DEFLATED) as zout:

    for info in zin.infolist():
        data = zin.read(info.filename)
        if info.filename == "word/document.xml":
            text = data.decode("utf-8", errors="replace")
            text = "<!-- edited by zipfile -->\n" + text
            data = text.encode("utf-8")
        zout.writestr(info, data)