mloginfo "SyntaxError: invalid syntax even with python3.6 installed on the machine

[Simone-cogno]

I reopened the issues because seems like my problem described in the closed ticket #777 was not well understood.

I try to use mloginfo but it fails to lunch because of a sytax error.

Expected behavior

mloginfo should work, and not having syntax errors.

Actual/current behavior

mloginfo /usr/local/var/mongodb/info.log --queries Traceback (most recent call last): File "/usr/local/bin/mloginfo", line 9, in <module> load_entry_point('mtools==1.6.1', 'console_scripts', 'mloginfo')() File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 565, in load_entry_point return get_distribution(dist).load_entry_point(group, name) File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2697, in load_entry_point return ep.load() File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2370, in load return self.resolve() File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/pkg_resources/__init__.py", line 2376, in resolve module = __import__(self.module_name, fromlist=['__name__'], level=0) File "/Library/Python/2.7/site-packages/mtools/mloginfo/mloginfo.py", line 75 timezone = f"UTC {tzdt.strftime('%z')}" ^ SyntaxError: invalid syntax

Steps to reproduce the actual/current behavior

Environment

I have installed in the machine python2 and python3.6

Software	Version
mtools	1.6.1
MongoDB server	4.2
Operating system	Mac OS X
python	2 and 3.6

[stennie]

@Simone-cogno The Python path in your output indicates that you have installed mtools 1.6.1 into a Python 2.7 environment, which is not expected to be compatible with Python 3 syntax:

"/System/Library/Frameworks/Python.framework/Versions/2.7/"

Please uninstall mtools and reinstall into a Python 3.6+ environment (or install an older mtools version which is compatible with your default Python).

If you have both Python 2 & 3 installed and Python 2 is your default, you can use pip3 install to install into Python 3. You can use pip --version or pip3 --version to confirm which Python interpreter is associated with the pip install.

If you are still have difficulties working out how to install into the relevant Python environment, I suggest posting a question on Stack Overflow.

Thanks,
Stennie