Question

how many integers types are supported by Python? Name them.

Answer 1

There are eight kinds of types supported by PyTables:

bool: Boolean (true/false) types. Supported precisions: 8 (default) bits.

int: Signed integer types. Supported precisions: 8, 16, 32 (default) and 64 bits.

uint: Unsigned integer types. Supported precisions: 8, 16, 32 (default) and 64 bits.

float: Floating point types. Supported precisions: 16, 32, 64 (default) bits and extended precision floating point (see note on floating point types).

complex: Complex number types. Supported precisions: 64 (32+32), 128 (64+64, default) bits and extended precision complex (seenote on floating point types).

string: Raw string types. Supported precisions: 8-bit positive multiples.

time: Data/time types. Supported precisions: 32 and 64 (default) bits.

enum: Enumerated types. Precision depends on base type.

Answer 2

There are five standard data types supported by Python.

1. Numbers: Number data type store numeric values.

Example: var = 10

There are four different numerical types in Python.

• int (signed integers) : Example- int_var = 100.

• long (long integers, can be represented in octal and hexadecimal also): Example- long_var = 53694565L.

• float (floating point values): Example- float_var = 85.34.

• complex (complex numbers): Example- complex_var = 5.23j.

2. Strings: Strings are contiguous set of characters in a quotation mark.

Example: string_var = “Good Morning”

3. Lists: The items in a list are separated by a comma within square brackets.

Example: list_var = [‘hello’, 456.8, 56]

4. Tuples: This is similar to lists unlike the items are enclosed within parentheses and items are separated by commas.

Example: tuple_var = (‘pqr’, ‘abc’, 963, 865.23)

5. Dictionary: This is like the hash tables. Items are enclosed in curly braces and values can be assigned and accessed using square brackets.  

Example:  

dict_var1 = {‘id’ = ‘345’, ‘name’ = ‘abc’}

dict_var2[‘one’] = ”Print one”