![]() Say you have two dictionaries and you want to merge them into a new dictionary without altering the original dictionaries: x = does not seem to handle nested dictionaries. Z.update(y) # modifies z with keys and values of y Z = x.copy() # start with keys and values of x In Python 2, (or 3.4 or lower) write a function: def merge_two_dicts(x, y): In Python 3.9.0 or greater (released 17 October 2020): PEP-584, discussed here, was implemented and provides the simplest method: z = x | y # NOTE: 3.9+ ONLY How can I merge two Python dictionaries in a single expression?įor dictionaries x and y, z becomes a shallowly-merged dictionary with values from y replacing those from x. How-to-install-psycopg2-with-pip-on-pythonīut I have no clue how to find the bin folder location containing pg_config. Warning: manifest_maker: standard file '-c' not found Writing manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt' Writing dependency_links to pip-egg-info/psycopg2.egg-info/dependency_links.txt Writing top-level names to pip-egg-info/psycopg2.egg-info/top_level.txt Writing pip-egg-info/psycopg2.egg-info/PKG-INFO Or with the pg_config option in 'setup.cfg'.Ĭomplete output from command python setup.py egg_info: Python setup.py build_ext -pg-config /path/to/pg_config build. Or specify the full executable path with the option: Please add the directory containing pg_config to the PATH ![]() Running setup.py (path:/private/var/folders/A9/A99cs6x0FNusPejCVkYNTE+++TI/-Tmp-/pip_build_bengorman/psycopg2/setup.py) egg_info for package psycopg2 ![]() When I run pip install psycopg2 in terminal I get the following error Downloading/unpacking psycopg2ĭownloading psycopg2-2.5.2.tar.gz (685kB): 685kB downloaded Complete newbie here, trying to set up Django to work with PostgreSQL.
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