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Python: Write a string to a buffer and retrieve the value written, at the end discard buffer memory

Python Operating System Services: Exercise-16 with Solution

Write a Python program to write a string to a buffer and retrieve the value written, at the end discard buffer memory.

Sample Solution:

Python Code :

import io
# Write a string to a buffer
output = io.StringIO()
output.write('Python Exercises, Practice, Solution')
# Retrieve the value written
print(output.getvalue())
# Discard buffer memory
output.close()

Sample Output:

Python Exercises, Practice, Solution

Python Code Editor:

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Previous: Write a Python program to get information about the file pertaining to the file mode. Print the information - ID of device containing file, inode number, protection, number of hard links, user ID of owner, group ID of owner, total size (in bytes), time of last access, time of last modification and time of last status change.
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Python: Tips of the Day

Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value:

Example:

def tips_map_values(obj, fn):
  ret = {}
  for key in obj.keys():
    ret[key] = fn(obj[key])
  return ret
users = {
  'Owen': { 'user': 'Owen', 'age': 29 },
  'Eddie': { 'user': 'Eddie', 'age': 15 }
}

print(tips_map_values(users, lambda u : u['age'])) # {'Owen': 29, 'Eddie': 15}

Output:

{'Owen': 29, 'Eddie': 15}