Python for Beginners

You are a data analyst in the Finance team. print() shows words on the screen.

You are a data analyst in the Finance team. Python is a calculator. + adds numbers.

You are a data analyst in the Finance team. A variable is a labelled box that keeps a value.

You are a data analyst in the Finance team. Text in quotes is called a string.

You are a data analyst in the Finance team. + glues two strings together.

You are a data analyst in the Finance team. An f-string drops a variable inside {curly brackets}.

You are a data analyst in the Finance team. type() tells you if something is a number or text.

You are a data analyst in the Finance team. int() changes "5" (text) into 5 (number).

You are a data analyst in the Finance team. A list keeps many values in one box, inside [square brackets].

You are a data analyst in the Finance team. Python counts from 0, so [0] is the first item.

You are a data analyst in the Finance team. [-1] means the last item.

You are a data analyst in the Finance team. len() counts the items in a list.

You are a data analyst in the Finance team. sum() adds every number in a list.

You are a data analyst in the Finance team. max() finds the biggest, min() the smallest.

You are a data analyst in the Finance team. append() puts a new item at the end.

You are a data analyst in the Finance team. > asks a yes/no question. The answer is True or False.

You are a data analyst in the Finance team. == checks if two things are equal (one = stores, two == compare).

You are a data analyst in the Finance team. if runs the indented line only when the question is True.

You are a data analyst in the Finance team. else runs when the if question is False.

You are a data analyst in the Finance team. A # starts a comment — a note for people, ignored by Python.

You are a data analyst in the Finance team. for goes through a list one item at a time.

You are a data analyst in the Finance team. range(5) gives 0,1,2,3,4.

You are a data analyst in the Finance team. Start at 0 and add each item.

You are a data analyst in the Finance team. Combine for and if to keep only some values.

You are a data analyst in the Finance team. while repeats as long as the question stays True.

You are a data analyst in the Finance team. elif means 'else if' — another question to try.

You are a data analyst in the Finance team. and needs both to be True; or needs just one.

You are a data analyst in the Finance team. def makes a little machine you can reuse.

You are a data analyst in the Finance team. Things inside the brackets are inputs.

You are a data analyst in the Finance team. return hands a result back out of the function.

You are a data analyst in the Finance team. Wrap a calculation so you can reuse it.

You are a data analyst in the Finance team. A dictionary matches a key to a value, like a phone book.

You are a data analyst in the Finance team. Assign to a key to add or change it.

You are a data analyst in the Finance team. .items() gives each key and value together.

You are a data analyst in the Finance team. Real tables are often a list of dictionaries.

You are a data analyst in the Finance team. sorted() returns a new list in order.

You are a data analyst in the Finance team. in checks whether an item is inside a list.

You are a data analyst in the Finance team. [0:2] takes items 0 and 1 — a slice of cake.

You are a data analyst in the Finance team. .upper(), .lower() and .strip() clean text.

You are a data analyst in the Finance team. .split(',') cuts text at each comma.

You are a data analyst in the Finance team. A one-line loop that builds a new list.

You are a data analyst in the Finance team. Add if at the end to keep only some items.

You are a data analyst in the Finance team. Build a dictionary in one line.

You are a data analyst in the Finance team. enumerate gives the position and the item.

You are a data analyst in the Finance team. lambda is a one-line function without a name.

You are a data analyst in the Finance team. Use a dictionary to add up numbers per category.

You are a data analyst in the Finance team. try runs risky code; except catches the mistake politely.

You are a data analyst in the Finance team. Skip values that can't become numbers.

You are a data analyst in the Finance team. Give a parameter a default so it's optional.

You are a data analyst in the Finance team. a if test else b picks one of two values.

You are a data analyst in the Finance team. A class is a blueprint for objects that hold data.

You are a data analyst in the Finance team. A method is a function that lives inside a class.

You are a data analyst in the Finance team. import borrows ready-made tools.

You are a data analyst in the Finance team. The csv module turns lines of text into rows.

You are a data analyst in the Finance team. JSON is how apps send data. json.dumps turns a dict into text.

You are a data analyst in the Finance team. pandas holds a table in a DataFrame.

You are a data analyst in the Finance team. df[df[col] == x] keeps matching rows.

You are a data analyst in the Finance team. groupby puts rows into piles, then sum adds each pile.

You are a data analyst in the Finance team. yield hands out one value at a time instead of a whole list.

You are a data analyst in the Finance team. Combine functions, loops and f-strings into a tiny report.