could someone explain keywords, marks, and function

[DrKatherineThuyMiller]

Hi Jefsummers
I am a medical doctor from Saigon, Vietnam. I graduated long time ago and practiced there for 8 years in family medicine. I came to the US and I passed all the medical licensing examinations, there are 4 of them totally, i studied on my own and passed all of them. They are the same examinations as for the domestic trained MDs.

Well, that is not enough for the licensing system, I still could not get my MD license to practice medicine because age and race discrimination I am unable to get a residency that would grant me my license.

I have very strong background and knowledge and lots of experiences in healthcare and medicine in the US for working here in various positions in healthcare for the last 10 years.

I just discovered data science last year 2019 and I really want to turn into this direction. Well, i know data sciences apply for anything and everything. indeed, medicine and healthcare use a lot of data sciences.

So I hope I can learn the skills and can return to work in healthcare using both of my healthcare background and skills plus this DS skills. or I can do any other industry.

thanks for asking.
Katherine

[buran]

Like @ndc85430 I am unfamiliar with these horizontal/vertical aspect you refer to and frankly in my opinion its usefulness is doubtful when it comes to computer languages. I have always learned new language in terms of concepts like, variables, operators/operator precedence, expressions, data structures, branching, loops, functions, OOP, etc. Once you are familiar with concepts in general learning new language becomes relatively easy - get to know particular syntax and gramar.
Looking at your example - it's incomplete, both in terms of missing "marks" and missing use cases. Some examples

• missing triple quotes ''' and """
  
• missing operators (look at expressions and operator precedence in particular)
  
• missing * and ** for packing/unpacking
  
• ... # this list could continue
  
• missing use cases in almost all of the examples/explanations (i.e. it's incomplete and that's the main problem when trying to create such list)
  

Also

print("Hello, world!")  # double quotes
print ('Hello, world!') # single quotes and space between the function and the parameter

Note that:

1. The space between print and opening bracket is not required and is actually against PEP8 recommendations - no space between function and opening bracket in function calls. The use of space in this case is not related to the use of " vs ' quote as implied by the explanations.
   
2. what they call parameter is not parameter, it's an argument list (in this case - actually single argument) in brackets. See the difference between arguments and parameters.
   
3. using sum as variable name should be avoided as it overrides the built-in function sum
   
4. what they call array is called list in python (again - incorrect use of terminology)
   
5. PEP8 recommends use of space on both sides of = in assignment operations (i.e. num2=2 is not recommended)
   

I could continue, but you get my point.

[DeaD_EyE]

pip3 install balack

Then create a file with some code inside:

Output:
{'glossary': {'title': 'example glossary',
  'GlossDiv': {'title': 'S',
   'GlossList': {'GlossEntry': {'ID': 'SGML',
     'SortAs': 'SGML',
     'GlossTerm': 'Standard Generalized Markup Language',
     'Acronym': 'SGML',
     'Abbrev': 'ISO 8879:1986',
     'GlossDef': {'para': 'A meta-markup language, used to create markup languages such as DocBook.',
      'GlossSeeAlso': ['GML', 'XML']},
     'GlossSee': 'markup'}}}}}

Then run black on this source file.
Then Output:

Output:
{
    "glossary": {
        "title": "example glossary",
        "GlossDiv": {
            "title": "S",
            "GlossList": {
                "GlossEntry": {
                    "ID": "SGML",
                    "SortAs": "SGML",
                    "GlossTerm": "Standard Generalized Markup Language",
                    "Acronym": "SGML",
                    "Abbrev": "ISO 8879:1986",
                    "GlossDef": {
                        "para": "A meta-markup language, used to create markup languages such as DocBook.",
                        "GlossSeeAlso": ["GML", "XML"],
                    },
                    "GlossSee": "markup",
                }
            },
        },
    }
}

The formatter black is very opinionated, but it formats the code in a way, that it's useable with git.
So if you make a diff of formatted code and not formatted code, you get the better results with formatted code.

[Gribouillis]

I posted a railroad diagram of python's grammar in this thread.

[DrKatherineThuyMiller]

Hi Grib and Deadeye

thanks for your examples.
i like the rainroad diagram, it is impressive and a lot to follow.
thanks
Katherine