Error when installing dmgbuild with pip.

Question

I am trying to install dmgbuild with pip and I receive the error below:

AttributeError: 'str' object has no attribute 'decode'

• Windows 10
• Command Prompt (Admin)

• pip version 9.0.1

  C:>pip install dmgbuild Collecting dmgbuild Using cached dmgbuild-1.3.0.tar.gz Collecting ds_store>=1.1.0 (from dmgbuild) Using cached ds_store-1.1.0.tar.gz Collecting mac_alias>=2.0.1 (from dmgbuild) Using cached mac_alias-2.0.1.tar.gz Complete output from command python setup.py egg_info: Traceback (most recent call last): File "", line 1, in File "C:\\Users\\rpanczer\\AppData\\Local\\Temp\\pip-build-gvy3qj3a\\mac-alias\\setup.py", line 5, in longdesc = f.read().decode('utf-8') AttributeError: 'str' object has no attribute 'decode'

   ---------------------------------------- 

  Command "python setup.py egg_info" failed with error code 1 in C:\\Users\\rpanczer\\AppData\\Local\\Temp\\pip-build-gvy3qj3a\\mac-alias\\

Answer 1

str.decode no longer exists in python 3.x

The error is due to mac_alias , which dmgbuild depends on,is not compatible to python 3 somehow.

You can check out mac_alias homepage.

I just tested everything is okay if you are using python 2.7.

Answer 2

Try to specify your python interpreter firstly before writing commands, this may help you in the case you have more than one version installed.

C:\ python3 pip install dmgbuild

Also try to use -m command in addition to pip install, it provides root access to python command prompt.

C:\ python3 -m pip install dmgbuild

In case neither of the methods above works for you, check if your python interpreter is already added the PATH variable.