데비안에 ppa를 추가할 때 S.gpg-agent.browser를 찾을 수 없습니다.

데비안에 ppa를 추가할 때 S.gpg-agent.browser를 찾을 수 없습니다.

저는 데비안 스트레치를 사용하고 있습니다. Python을 지원하는 vim용 저장소를 추가하려고 하는데 추가하는 동안 gpg-agent.browser not find 오류가 발생합니다.

sudo add-apt-repository ppa:pi-rho/dev
    [sudo] password for sathish: 
 Dev Packages
 More info: https://launchpad.net/~pi-rho/+archive/ubuntu/dev
Press [ENTER] to continue or ctrl-c to cancel adding it

gpg: keybox '/tmp/tmpxl_vk750/pubring.gpg' created
gpg: /tmp/tmpxl_vk750/trustdb.gpg: trustdb created
gpg: key CC892FC6779C27D7: public key "Launchpad PPA for pi-rho" imported
gpg: Total number processed: 1
gpg:               imported: 1
gpg: no valid OpenPGP data found.
Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python3.5/threading.py", line 914, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.5/threading.py", line 862, in run
    self._target(*self._args, **self._kwargs)
  File "/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line 688, in addkey_func
    func(**kwargs)
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 386, in add_key
    return apsk.add_ppa_signing_key()
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 273, in add_ppa_signing_key
    cleanup(tmp_keyring_dir)
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 234, in cleanup
    shutil.rmtree(tmp_keyring_dir)
  File "/usr/lib/python3.5/shutil.py", line 480, in rmtree
    _rmtree_safe_fd(fd, path, onerror)
  File "/usr/lib/python3.5/shutil.py", line 438, in _rmtree_safe_fd
    onerror(os.unlink, fullname, sys.exc_info())
  File "/usr/lib/python3.5/shutil.py", line 436, in _rmtree_safe_fd
    os.unlink(name, dir_fd=topfd)
FileNotFoundError: [Errno 2] No such file or directory: 'S.gpg-agent.browser'

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