tw22

Backup/21 ZIP komprese s prubehem.py

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+from pathlib import Path
+import zipfile
+
+SRC = Path(r"D:\medicusbackup\MEDICUS_2026-01-24_17-07-44.fbk")
+DST = SRC.with_suffix(".zip")
+
+total = SRC.stat().st_size
+processed = 0
+chunk = 8 * 1024 * 1024  # 8 MB
+
+with zipfile.ZipFile(
+    DST,
+    "w",
+    compression=zipfile.ZIP_DEFLATED,
+    compresslevel=9,
+) as zf:
+
+    zi = zipfile.ZipInfo(SRC.name)
+    zi.compress_type = zipfile.ZIP_DEFLATED
+
+    # ⬇⬇⬇ DŮLEŽITÉ ⬇⬇⬇
+    with zf.open(zi, "w", force_zip64=True) as z:
+        with open(SRC, "rb") as f:
+            while True:
+                buf = f.read(chunk)
+                if not buf:
+                    break
+
+                z.write(buf)
+                processed += len(buf)
+
+                pct = processed * 100 / total
+                print(
+                    f"\rZIP: {pct:6.2f}%  ({processed//1024//1024} MB)",
+                    end="",
+                    flush=True,
+                )
+
+print("\nHotovo.")