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Dictionaries in Lists - szbeco - Nov-05-2019
Hi there!
I started learning Python with the help of "Python Crash Course" by Eric Matthes. The progress is good, but I stuck at one of the exercises and sadly, the book doesn't have solutions given away. I tried checking several tutorials before asking here, but no luck.
Here's the task:Quote:Make several dictionaries. In each dictionary, include keys and values. Store these dictionaries in a list. Next, loop through your list
and as you do print everything you know about each dictionary.
I got this far:
name1 = {'key': 'value', 'key2': 'value2', }
name2 = {'key3': 'value3', 'key4': 'value4', }
name3 = {'key5': 'value5', 'key6': 'value6', }
names = [name1, name2, name3]
for name in names:
#?????
for keys, values in name.items():
print("\t" + keys + ":" + values)The code prints out the keys and values just fine, but even after trying many alternatives, I can't print out the names of the dictionaries. I only manage to print out the whole dictionary. My goal for the print output is this:name1:
key:value
key2:value2
name2:
key3:value3
key4:value4
name3:
key5:value5
key6:value6Any help is much appreciated!
RE: Dictionaries in Lists - buran - Nov-05-2019
why do you think you should print also variable name?
RE: Dictionaries in Lists - szbeco - Nov-05-2019
(Nov-05-2019, 11:45 AM)buran Wrote: why do you think you should print also variable name?
I'm not sure I have to, but as I start to understand, you can basically do anything you want in programming and now that I decided to print out the dictionaries names, which became a problem for me to solve, I definitely want to.
RE: Dictionaries in Lists - ThomasL - Nov-05-2019
Maybe you can make use of this:
dictionaries = {
"name1": {'key1': 'value1', 'key2': 'value2'},
"name2": {'key3': 'value3', 'key4': 'value4'},
"name3": {'key5': 'value5', 'key6': 'value6'}
}
for dictionary_name, subdictionaries in dictionaries.items():
print(dictionary_name)
for key, value in subdictionaries.items():
print(f"\t{key}:{value}")Output:name1
key1:value1
key2:value2
name2
key3:value3
key4:value4
name3
key5:value5
key6:value6The assignment specifically does not ask for printing name of dict
If OP wants to do this, it can be done with modified assignment. :-)
RE: Dictionaries in Lists - szbeco - Nov-05-2019
Quote:If OP wants to do this, it can be done with modified assignment. :-)
So maybe I made a much harder task out of it, than it originally was...?
It's likely, because I can't really find a part in the chapter, that could help in this. I'm curious to know if later on this problem will be much easier to solve with - as ThomasL said - modified assignments.
RE: Dictionaries in Lists - ehmatthes - Nov-06-2019
Hi, I'm the author of Python Crash Course. There are solutions available online, but not to this specific exercise. The online resources for the first edition are here: http://ehmatthes.github.io/pcc/
The resources for the second edition are here: https://ehmatthes.github.io/pcc_2e/
RE: Dictionaries in Lists - szbeco - Nov-07-2019
(Nov-06-2019, 03:36 PM)ehmatthes Wrote: Hi, I'm the author of Python Crash Course. There are solutions available online, but not to this specific exercise. The online resources for the first edition are here: http://ehmatthes.github.io/pcc/
The resources for the second edition are here: https://ehmatthes.github.io/pcc_2e/
Thank you for the links, they will definitely come handy in later chapters!
By the way the book is really good, both content- and layout-wise; glad I can give a feedback to the author himself!