Python convert bytes to megabytes

How to convert bytes to mb in python

how to convert gb to mb in python convert mb to gb python how to convert gb to mb in python bytes to kb mb gb python Question: I need to convert a human readable notation of the upload size limit (e.g. 100kb,32MB, etc.) using Python. Solution 3: The following function does the job: You can test this function here: http://ideone.com/kse773 This function requires improvements to support a single character size units (e.g. for bytes).

How to convert bytes to mb in python

how to convert gb to mb in python

try: gb = int(input("How much Gb:- ")) conversion = gb * 1024 print(conversion," MB") except ValueError: print("GB must be in numerical format not the char format") #numerical format --> integer #char format --> string

Convert Bytes To Human-Readable String (Kb, Mb, Gb ) With Python, Convert Bytes To Human-Readable String (Kb, Mb, Gb ) With Python Duration: 3:35

Convert Bytes To Human-Readable String (Kb, Mb, Gb ) With Python

Bytes to kb mb gb python

convert mb to gb python

try: MB = int(input("How much MB:- ")) conversion = MB / 1024 print(conversion," GB") except ValueError: print("MB must be in numerical format not the char format") #numerical format --> integer #char format --> string

how to convert gb to mb in python

try: gb = int(input("How much Gb:- ")) conversion = gb * 1024 print(conversion," MB") except ValueError: print("GB must be in numerical format not the char format") #numerical format --> integer #char format --> string

bytes to kb mb gb python

def convert_bytes(bytes_number): tags = [ "Byte", "Kilobyte", "Megabyte", "Gigabyte", "Terabyte" ] i = 0 double_bytes = bytes_number while (i < len(tags) and bytes_number >= 1024): double_bytes = bytes_number / 1024.0 i = i + 1 bytes_number = bytes_number / 1024 return str(round(double_bytes, 2)) + " " + tags[i] print(convert_bytes(4896587482345)) print(convert_bytes(9876524362)) print(convert_bytes(10248000)) print(convert_bytes(1048576)) print(convert_bytes(1024000)) print(convert_bytes(475445)) print(convert_bytes(1024)) print(convert_bytes(75)) print(convert_bytes(0))

Python bytes() Function, It can convert objects into bytes objects, or create empty bytes object of the specified size. The difference between bytes() and bytearray() is that bytes()

Convert size notation with units (100kb, 32MB) to number of bytes in Python

I need to convert a human readable notation of the upload size limit (e.g. 100kb,32MB, etc.) using Python. The converted value should be expressed as a number of bytes.

convert_size_to_bytes("32MB") # should return 33554432 convert_size_to_bytes("100kB") # should return 102400 convert_size_to_bytes("123B") # should return 123 convert_size_to_bytes("123") # should return 123 

I liked the simple approach taken by @Robson, but I noticed it has a number of corner cases that it didn’t handle. The version below is largely the same, but it adds/fixes the following:

• Adds support for byte, kilobyte, etc.
• Provides support for singular units, e.g., «1 byte»
• Adds support for yottabytes, zetabytes, etc. The version above would crash for these.
• Adds support for spaces before, after, and in the input.
• Adds support for floats («5.2 mb»)
• Bigger docstring

def convert_size_to_bytes(size_str): """Convert human filesizes to bytes. Special cases: - singular units, e.g., "1 byte" - byte vs b - yottabytes, zetabytes, etc. - with & without spaces between & around units. - floats ("5.2 mb") To reverse this, see hurry.filesize or the Django filesizeformat template filter. :param size_str: A human-readable string representing a file size, e.g., "22 megabytes". :return: The number of bytes represented by the string. """ multipliers = < 'kilobyte': 1024, 'megabyte': 1024 ** 2, 'gigabyte': 1024 ** 3, 'terabyte': 1024 ** 4, 'petabyte': 1024 ** 5, 'exabyte': 1024 ** 6, 'zetabyte': 1024 ** 7, 'yottabyte': 1024 ** 8, 'kb': 1024, 'mb': 1024**2, 'gb': 1024**3, 'tb': 1024**4, 'pb': 1024**5, 'eb': 1024**6, 'zb': 1024**7, 'yb': 1024**8, >for suffix in multipliers: size_str = size_str.lower().strip().strip('s') if size_str.lower().endswith(suffix): return int(float(size_str[0:-len(suffix)]) * multipliers[suffix]) else: if size_str.endswith('b'): size_str = size_str[0:-1] elif size_str.endswith('byte'): size_str = size_str[0:-4] return int(size_str) 

And I wrote a bunch of tests for values that we’re scraping:

class TestFilesizeConversions(TestCase): def test_filesize_conversions(self): """Can we convert human filesizes to bytes?""" qa_pairs = [ ('58 kb', 59392), ('117 kb', 119808), ('117kb', 119808), ('1 byte', 1), ('117 bytes', 117), ('117 bytes', 117), (' 117 bytes ', 117), ('117b', 117), ('117bytes', 117), ('1 kilobyte', 1024), ('117 kilobytes', 119808), ('0.7 mb', 734003), ('1mb', 1048576), ('5.2 mb', 5452595), ] for qa in qa_pairs: print("Converting '%s' to bytes. " % qa[0], end='') self.assertEqual(convert_size_to_bytes(qa[0]), qa[1]) print('✓') 

an alternative using regular expression and replacement functions:

import re suffixes = "","k","m","g","t" multipliers = b'.format(l) : 1024**i for i,l in enumerate(suffixes) > sre = re.compile("(\d+)(<>)".format("|".join(x+"b" for x in suffixes)),re.IGNORECASE) def subfunc(m): return str(int(m.group(1))*multipliers[m.group(2).lower()]) def convert_size_to_bytes(size): return sre.sub(subfunc,size) print(convert_size_to_bytes("32MB")) print(convert_size_to_bytes("100kB")) print(convert_size_to_bytes("123")) 

The dictionary and the regexes are generated according to the unit (so it can be extended to exa, peta. )

When matching digits + unit, it replaces the expression by the evaluated integer for the first group times the value of the dictionary), converted back to string as the re.sub function requires.

The following function does the job:

def convert_size_to_bytes(size): multipliers = < 'kb': 1024, 'mb': 1024*1024, 'gb': 1024*1024*1024, 'tb': 1024*1024*1024*1024 >for suffix in multipliers: if size.lower().endswith(suffix): return int(size[0:-len(suffix)]) * multipliers[suffix] else: if size.lower().endswith('b'): return int(size[0:-1]) try: return int(size) except ValueError: # for example "1024x" print('Malformed input!') exit() print(convert_size_to_bytes("32MB")) print(convert_size_to_bytes("100kB")) print(convert_size_to_bytes("123B")) print(convert_size_to_bytes("123")) 

You can test this function here: http://ideone.com/kse773

This function requires improvements to support a single character size units (e.g. B for bytes). As B is a suffix of the kB different approach should by applied.

Python: Get Size of Dictionary, The memory size of the dictionary object in bytes can be determined by the getsizeof() function.

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Python convert bytes to megabytes

Int built-in. Numbers can be converted to different types. In many languages this is called explicit casting. In Python we use a method syntax, such as int(), to do this.Int

Int: This method receives a number and returns the integral form of that number.

So: If we pass 1.5 to int(), it will return 1. It always removes the fractional part of the number.

Python program that converts to int floating = 1.23456 # Convert to int and print. print(floating) print(int(floating)) Output 1.23456 1

Int, string. A number is converted into a string with str. And a string is converted into a number with int. In this example, we do these two conversions.

And: We show the value types by using them. We use len() on the string and add one to the number.

So: The string «123» has three characters. And the number 123 is increased to 124 when we add one to it.

Python program that converts int, string # Convert number to string. number = 123 value = str(number) # Print the string and its character count. print(value) print(len(value)) # Convert string to number. number2 = int(value) # Print the number and add one. print(number2) print(number2 + 1) Output 123 3 123 124

Class, string. We can specify how a class is converted to a string with the __repr__ method. This method returns a string. We can have it return values of fields in the class.

Note: The repr and str methods (with no underscores) are used on instances of a class. If the __repr__ method is defined, it will be used.

Tip: Classes like list also have repr (representation) methods. This is why you can directly print a list.

Python program that converts class to string class Test: def __init__(self): self.size = 1 self.name = «Python» def __repr__ (self): # Return a string. return «Size , Name cat» # Get chars from string with list comprehension. list = [c for c in value] print(list) Output [‘c’, ‘a’, ‘t’]

Bytes, string. Python 3 has the space-efficient bytes type. We can take a string and convert it into bytes with a built-in. We provide the «ascii» encoding as a string argument.

Decode: To convert from the bytes data back into a string, we can use the decode method. We again must provide an encoding string.

Python program that converts bytes, string # Convert from string to bytes. value = «carrot» data = bytes(value, «ascii») print(data) # Convert bytes into string with decode. original = data.decode(«ascii») print(original) Output b’carrot’ carrot

Bytes, megabytes. A number in one unit, like bytes, can be converted into another, like megabytes. Here we divide by 1024 twice. Further conversions (bytes, gigabytes) are possible.

Note: Large files have many bytes. In an interface, displaying this number is awkward and hard to read.

Convert: One megabyte contains 1024 kilobytes. And 1 kilobyte contains 1024 bytes.

So: To get from bytes to megabytes, we divide by 1024, and then by 1024 again: two divisions are needed.

And: To go from kilobytes to megabytes, we need just one division by 1024. This is simple, but testing is important.

Python program that converts bytes, megabytes def bytestomegabytes(bytes): return (bytes / 1024) / 1024 def kilobytestomegabytes(kilobytes): return kilobytes / 1024 # Convert 100000 bytes to megabytes. megabytes1 = bytestomegabytes(100000) print(100000, «bytes megabytes») # 1024 kilobytes to megabytes. megabytes2 = kilobytestomegabytes(1024) print(1024, «kilobytes megabytes») Output 100000 bytes = 0.095367431640625 megabytes 1024 kilobytes = 1.0 megabytes

Dict. With the dictionary built-in, we can convert from a list of tuples (with keys, values) to a dictionary. Dict() is a useful built-in method.dict

A conversion note. If your conversion requires processing, consider a custom method. In programming, conversions are often necessary. Reducing conversions usually improves performance.

A summary. Conversions in Python use many syntax forms. Some conversions are numeric. These can be done with mathematical methods or arithmetic.

Often, conversions are encapsulated in a method definition. And for compound types such as collections, the Python language provides many built-in methods to convert, such as list().

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