structuredAttrs is enabled

trying https://github.com/libnano/primer3-py/archive/refs/tags/v2.3.1.tar.gz
  % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
                                 Dload  Upload  Total   Spent   Left   Speed

  0      0   0      0   0      0      0      0                              0
  0      0   0      0   0      0      0      0                              0
  0      0   0      0   0      0      0      0                              0

  0      0   0      0   0      0      0      0                              0
100 633.8k   0 633.8k   0      0 665.8k      0                              0
100 633.8k   0 633.8k   0      0 665.8k      0                              0
100 633.8k   0 633.8k   0      0 665.7k      0                              0
unpacking source archive /build/download.tar.gz