Crash with -f video+audio; crash with -v -f

[DrHyde]

Please follow the guide below

• You will be asked some questions and requested to provide some information, please read them carefully and answer honestly
• Put an x into all the boxes [ ] relevant to your issue (like this: [x])
• Use the Preview tab to see what your issue will actually look like

---

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2017.10.12. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2017.10.12

Before submitting an issue make sure you have:

• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

---

The following sections concretize particular purposed issues, you can erase any section (the contents between triple ---) not applicable to your issue

---

If the purpose of this issue is a bug report, site support request or you are not completely sure provide the full verbose output as follows:

Add the -v flag to your command line you run youtube-dl with (youtube-dl -v <your command line>), copy the whole output and insert it here. It should look similar to one below (replace it with your log inserted between triple ```):

 youtube-dl -v -f 135+140 https://www.youtube.com/watch?v=H7Uyfqi_TE8
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'-f', u'135+140', u'https://www.youtube.com/watch?v=H7Uyfqi_TE8']
[debug] Encodings: locale US-ASCII, fs utf-8, out US-ASCII, pref US-ASCII
[debug] youtube-dl version 2017.10.12
[debug] Python version 2.7.10 - Darwin-15.6.0-x86_64-i386-64bit
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/local/bin/youtube-dl/__main__.py", line 19, in <module>
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 465, in main
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 432, in _real_main
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 413, in __init__
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2236, in print_debug_header
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 76, in get_versions
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 60, in __init__
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 117, in _determine_executables
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 117, in <genexpr>
  File "/usr/local/bin/youtube-dl/youtube_dl/utils.py", line 1910, in get_exe_version
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1334, in _execute_child
    child_exception = pickle.loads(data)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 1382, in loads
    return Unpickler(file).load()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 858, in load
    dispatch[key](self)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 966, in load_string
    raise ValueError, "insecure string pickle"
ValueError: insecure string pickle

---

Description of your issue, suggested solution and other information

Youtube-dl crashes if I attempt to download a video (see link to video above) choosing particular audio and video formats. Each of the above formats (-f 135 and -f 140) work on their own, it only crashes when I try to download and combine them. This used to work. They also crash on their own with -v. ie ...

$ youtube-dl -v -f 135 https://www.youtube.com/watch?v=H7Uyfqi_TE8
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'-f', u'135', u'https://www.youtube.com/watch?v=H7Uyfqi_TE8']
[debug] Encodings: locale US-ASCII, fs utf-8, out US-ASCII, pref US-ASCII
[debug] youtube-dl version 2017.10.12
[debug] Python version 2.7.10 - Darwin-15.6.0-x86_64-i386-64bit
Traceback (most recent call last):
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/local/bin/youtube-dl/__main__.py", line 19, in <module>
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 465, in main
  File "/usr/local/bin/youtube-dl/youtube_dl/__init__.py", line 432, in _real_main
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 413, in __init__
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2236, in print_debug_header
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 76, in get_versions
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 60, in __init__
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 117, in _determine_executables
  File "/usr/local/bin/youtube-dl/youtube_dl/postprocessor/ffmpeg.py", line 117, in <genexpr>
  File "/usr/local/bin/youtube-dl/youtube_dl/utils.py", line 1910, in get_exe_version
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1334, in _execute_child
    child_exception = pickle.loads(data)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 1382, in loads
    return Unpickler(file).load()
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 858, in load
    dispatch[key](self)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/pickle.py", line 966, in load_string
    raise ValueError, "insecure string pickle"
ValueError: insecure string pickle

[Hrxn]

Try to update Python. Either a more recent 2.x version, or Python 3.

[yan12125]

Thanks @Hrxn. Specifically, Python 2.7.13 or newer fixes this issue. Please move on to #6840 for further discussions.

[DrHyde]

Thanks.