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Python

Andrew BoosHartig
Andrew BoosHartig
1,820 Points
Posted by Andrew BoosHartig
Andrew BoosHartig
1,820 Points

Expanding more on manipulating dictionaries and converting them for data manipulation.

Feel free to paste and play around with these as separate pieces by commenting some out. 

# Introduction to dictionaries
# you can also access them similar to a list but it uses keyword values
course = {'teacher':'Ashley', 'title':'Introducing dictionaries', 'level': 'intermediate'}

for key, value in course.items():
    print(f"The key is > '{key}': And the value is > '{value}'")
print()

for key, value in course.items():
    print(f"{key}: {value}")

##########
print()
print(course)
print()
#############
print(course.keys())          # dict_keys(['teacher', 'title', 'level', 'stages'])

for key in course.keys():
    print(key)
print()
################
print(course.values())        # dict_values(['Ashley', 'Introducing Dictionaries', 'Intermediate', 3])

for value in course.values():
    print(value)

Here's more on converting to lists etc. for further manipulation.

# Grade 'A' with type casting.

course = {
    "teacher": "Ashley",
    "title": "Introducing Dictionaries",
    "level": "Intermediate",
    "stages": 3,
}

# Convert to lists
keys_list = list(course.keys())
values_list = list(course.values())
items_list = list(course.items())

print(keys_list)    # ['teacher', 'title', 'level', 'stages']
print(values_list)  # ['Ashley', 'Introducing Dictionaries', 'Intermediate', 3]
print(items_list)   # [('teacher', 'Ashley'), ('title', 'Introducing Dictionaries'), ('level', 'Intermediate'), ('stages', 3)]

# Slice them like normal lists
print(keys_list[:2])     # ['teacher', 'title']
print(values_list[-2:])  # ['Intermediate', 3]
print(items_list[1:3])   # [('title', 'Introducing Dictionaries'), ('level', 'Intermediate')]
print()
subset = dict(items_list[:2])  
print(subset)