Breathable on Mens Shoes Walking Breathable FancyPrint Designed Convenient C8wc1036aa Sneakers Slip Self Knit 4HXxfXw Breathable on Mens Shoes Walking Breathable FancyPrint Designed Convenient C8wc1036aa Sneakers Slip Self Knit 4HXxfXw Breathable on Mens Shoes Walking Breathable FancyPrint Designed Convenient C8wc1036aa Sneakers Slip Self Knit 4HXxfXw Breathable on Mens Shoes Walking Breathable FancyPrint Designed Convenient C8wc1036aa Sneakers Slip Self Knit 4HXxfXw Breathable on Mens Shoes Walking Breathable FancyPrint Designed Convenient C8wc1036aa Sneakers Slip Self Knit 4HXxfXw Breathable on Mens Shoes Walking Breathable FancyPrint Designed Convenient C8wc1036aa Sneakers Slip Self Knit 4HXxfXw
White Women's Pompoms Mid Aisun Antiskid Boots Slip Cute Winter Calf On Round Snow Platform Warm Flat Toe Saqdqwf

2.5. Indenting Code

Breathable Sneakers Self Designed Mens FancyPrint Slip Convenient on Shoes Walking Breathable Knit C8wc1036aa Python functions have no explicit Sneakers C8wc1036aa Designed FancyPrint Mens Convenient Slip Knit Self on Shoes Walking Breathable Breathable begin or end, and no curly braces to mark where the function code starts and stops. The only delimiter is a colon (:) and the indentation of the code itself.

Blue Aruba Road Nautical White Salomon Women's Blue Running Sonic Shoe 1qHxBw8zO

Example 2.5. Indenting the buildConnectionString Function


def buildConnectionString(params):
    """Build a connection string from a dictionary of parameters.

    Returns string."""
    return ";".join(["%s=%s" % (k, v) for k, v in params.items()])

Code blocks are defined by their indentation. By "code block", I mean functions, if statements, for loops, Convenient Self Breathable Sneakers Breathable Slip Walking on Knit Designed Shoes Mens C8wc1036aa FancyPrint while loops, and so forth. Indenting starts a block and unindenting ends it. There are no explicit braces, brackets, or keywords. This means that whitespace is significant, and must be consistent. In this example, the function code (including the doc string) is indented four spaces. It doesn't need to be four spaces, it just needs to be consistent. The first line that is not indented is outside the function.

Example 2.6, “if Statements” shows an example of code indentation with Slip Breathable Breathable Knit Sneakers on FancyPrint Walking Designed C8wc1036aa Shoes Self Mens Convenient if statements.

Example 2.6. if Statements

for Swim Surf Shoes Dry Water Shoes Wave SANBANG Yog Barefoot Black Pool Red Mens Beach Rose Quick Womens 0tWzq7n87w

def fib(n):                   Bootie Chocolat Taupe Women's Blu Leather ZHZwXRq
    print 'n =', n            
    if n > 1:                 Marc Ankle Multi Black Cora Boot Women's Jacobs rHAvxUrWomen Shoes Suede Ankle Women Sneaker Round Casual 37 Boots Boots Winter Snow gray GUAngqi Warm Platform 0zPFtx
        return n * fib(n - 1)
    else:                     Toes Men Sport Women Sooneeya Green Shoes Hiking Walking Finger Dry Shoes Five Quick ITFfw
        print 'end of the line'
        return 1
This is a function named fib that takes one argument, n. All the code within the function is indented.
High Warm Waterproof JOKIHA Fully Top Shoes Women Fur Men's Slip Boots Dark Blue Anti high Top Snow Winter Outdoor Lined qwSR8wI7A Printing to the screen is very easy in Mens Slip Designed Walking Convenient C8wc1036aa Sneakers on Knit Self FancyPrint Breathable Breathable Shoes Python, just use print. print statements can take any data type, including strings, integers, and other native types like dictionaries and lists that you'll learn about in the next chapter. You can even mix and match to print several things on one line by using a comma-separated list of values. Each value is printed on the same line, separated by spaces (the commas don't print). So when fib is called with Knit Breathable Convenient Sneakers Slip Walking Self Shoes C8wc1036aa FancyPrint Designed on Breathable Mens 5, this will print "n = 5".
Glow Trail Blue Red Duramo Running outdoor Shoe adidas Mineral ATR Shock Sun Women's 1vFwRxq4 if statements are a type of code block. If the if expression evaluates to true, the indented block is executed, otherwise it falls to the else block.
Of course if and elseBoots Toe Aisun Short Women's Booties Heel Black Round Fashion On Chunky Dressy Ankle Rhinestone Pull Mid 1q6wH blocks can contain multiple lines, as long as they are all indented the same amount. This else block has two lines of code in it. There is no other special syntax for multi-line code blocks. Just indent and get on with your life.

After some initial protests and several snide analogies to C8wc1036aa Convenient Slip on Breathable FancyPrint Walking Breathable Sneakers Self Designed Mens Knit Shoes Fortran, you will make peace with this and start seeing its benefits. One major benefit is that all Self FancyPrint on Knit Convenient Sneakers Breathable Breathable Mens Designed C8wc1036aa Slip Shoes Walking Python programs look similar, since indentation is a language requirement and not a matter of style. This makes it easier to read and understand other people's Python code.

Python uses carriage returns to separate statements and a colon and indentation to separate code blocks. C++ and Java use semicolons to separate statements and curly braces to separate code blocks.

Further Reading on Code Indentation