title: python3.5 error 'dyld library not loaded: CoreFoundation' after macOS Big Sur update
body: <p>Process:               Python [1593]
  Path:                  /Library/Frameworks/Python.framework/Versions/3.5/Resources/Python.app/Contents/MacOS/Python
  Identifier:            Python
  Version:               3.5.1 (3.5.1)
  Code Type:             X86-64 (Native)
  Parent Process:        zsh [1569]
  Responsible:           iTerm2 [1562]
  User ID:               501</p>
  <p>Date/Time:             2020-11-21 08:15:58.865 +0800
  OS Version:            macOS 11.0.1 (20B29)
  Report Version:        12
  Bridge OS Version:     5.0.1 (18P2561)
  Anonymous UUID:        E76F7C18-1C08-D433-A979-D43ED08102AF</p>
  <p>Sleep/Wake UUID:       E8807548-2D08-4BC7-840E-21E0138FEC36</p>
  <p>Time Awake Since Boot: 1400 seconds
  Time Since Wake:       210 seconds</p>
  <p>System Integrity Protection: enabled</p>
  <p>Crashed Thread:        0</p>
  <p>Exception Type:        EXC_CRASH (SIGABRT)
  Exception Codes:       0x0000000000000000, 0x0000000000000000
  Exception Note:        EXC_CORPSE_NOTIFY</p>
  <p>Termination Reason:    DYLD, [0x1] Library missing</p>
  <p>Application Specific Information:
  dyld: launch, loading dependent libraries</p>
  <p>Dyld Error Message:
  dyld: No shared cache present
  Library not loaded: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
  Referenced from: /Library/Frameworks/Python.framework/Versions/3.5/Resources/Python.app/Contents/MacOS/Python
  Reason: image not found</p>
  <p>Binary Images:
  0x100000000 -        0x100000fff +org.python.python (3.5.1 - 3.5.1) &lt;16087962-95EF-B9B7-A634-47CA97FED0B7&gt; /Library/Frameworks/Python.framework/Versions/3.5/Resources/Python.app/Contents/MacOS/Python
  0x7fff624d8000 -     0x7fff62573fff  dyld (832.7.1) &lt;2705F0D8-C104-3DE9-BEB5-B1EF6E28656D&gt; /usr/lib/dyld</p>
  <p>Model: MacBookPro15,2, BootROM 1554.50.3.0.0 (iBridge: 18.16.12561.0.0,0), 4 processors, Quad-Core Intel Core i5, 2.4 GHz, 16 GB, SMC
  Graphics: kHW_IntelIrisGraphics655Item, Intel Iris Plus Graphics 655, spdisplays_builtin
  Memory Module: BANK 0/ChannelA-DIMM0, 8 GB, LPDDR3, 2133 MHz, SK Hynix, -
  Memory Module: BANK 2/ChannelB-DIMM0, 8 GB, LPDDR3, 2133 MHz, SK Hynix, -
  AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x7BF), wl0: Sep 11 2020 16:57:49 version 9.30.440.2.32.5.61 FWID 01-129bddb
  Bluetooth: Version 8.0.1f5, 3 services, 18 devices, 1 incoming serial ports
  Network Service: Wi-Fi, AirPort, en0
  USB Device: USB 3.1 Bus
  USB Device: Apple T2 Bus
  USB Device: Touch Bar Backlight
  USB Device: Touch Bar Display
  USB Device: Apple Internal Keyboard / Trackpad
  USB Device: Headset
  USB Device: Ambient Light Sensor
  USB Device: FaceTime HD Camera (Built-in)
  USB Device: Apple T2 Controller
  Thunderbolt Bus: MacBook Pro, Apple Inc., 47.4
  Thunderbolt Bus: MacBook Pro, Apple Inc., 47.4</p>