Sigrok->PulseView: AppImage problem

$ ./PulseView-0.4.2-x86_64.AppImage
srd: SyntaxError: Failed to load decoder signature: import by name failed: invalid syntax (pd.py, line 138)
srd: Traceback (most recent call last):
  File "/home/tmp/.mount_PulseVrhUaR7/usr/share/libsigrokdecode/decoders/signature/__init__.py", line 25, in <module>
    from .pd import Decoder
  File "/home/tmp/.mount_PulseVrhUaR7/usr/share/libsigrokdecode/decoders/signature/pd.py", line 138
    incoming = (bin(shiftreg & 0b0000_0010_1001_0001).count('1') + data) & 1
                                                   ^
SyntaxError: invalid syntax

srd: SyntaxError: Failed to load decoder signature: import by name failed: invalid syntax (pd.py, line 138)
srd: Traceback (most recent call last):
  File "/home/tmp/.mount_PulseVrhUaR7/usr/share/libsigrokdecode/decoders/signature/__init__.py", line 25, in <module>
    from .pd import Decoder
  File "/home/tmp/.mount_PulseVrhUaR7/usr/share/libsigrokdecode/decoders/signature/pd.py", line 138
    incoming = (bin(shiftreg & 0b0000_0010_1001_0001).count('1') + data) & 1
                                                   ^
SyntaxError: invalid syntax

srd: SyntaxError: Failed to load decoder signature: import by name failed: invalid syntax (pd.py, line 138)
srd: Traceback (most recent call last):
  File "/home/tmp/.mount_PulseVrhUaR7/usr/share/libsigrokdecode/decoders/signature/__init__.py", line 25, in <module>
    from .pd import Decoder
  File "/home/tmp/.mount_PulseVrhUaR7/usr/share/libsigrokdecode/decoders/signature/pd.py", line 138
    incoming = (bin(shiftreg & 0b0000_0010_1001_0001).count('1') + data) & 1
                                                   ^
SyntaxError: invalid syntax