Question

我有一本有几个键和值的字典。我希望能够逐行打印特定的键。

my_dictionary = {'vendor': 'Maker', 'hostname': 'PC1',
   'os_version': 'OSv1', 'uptime': 7260, 
'serial_number': '9NJFB4', 'model': 'Iv2', 'fqdn': 'PC1.lab.local'}

例如，我希望能够打印：

fqdn: PC1.lab.local
serial_number: 9NJFB4
model: Iv2
uptime: 7260

Answer 1

使用python字典项功能

for (key, value) in my_dictionary.items(): print('{key}: {value}'.format(key=key, value=value)

Answer 2

您可能正在寻找pprint

import pprint
pp = pprint.PrettyPrinter(width=41, compact=True)
filtered_keys = ['fqdn','serial_number','uptime']
pp.pprint({k:v for k,v in my_dictionary.items() if k in filtered_keys})

#
{'fqdn': 'PC1.lab.local', 
 'serial_number': '9NJFB4', 
 'uptime': 7260}

Answer 3

您可以对dict进行一次简单的迭代，并打印密钥（如果密钥存在于所需的密钥中）。

my_dictionary = {'vendor': 'Maker', 'hostname': 'PC1',
   'os_version': 'OSv1', 'uptime': 7260, 
'serial_number': '9NJFB4', 'model': 'Iv2', 'fqdn': 'PC1.lab.local'}

needed_keys = ['fqdn', 'serial_number', 'model', 'uptime']

for key, val in my_dictionary.items():
    if key in needed_keys:
        print(f'{key} : {val}')

# Output

uptime : 7260
serial_number : 9NJFB4
model : Iv2
fqdn : PC1.lab.local

如果python版本低于3.6，并且不支持f字符串，请在format中使用以下代码来打印键值

my_dictionary = {'vendor': 'Maker', 'hostname': 'PC1',
   'os_version': 'OSv1', 'uptime': 7260, 
'serial_number': '9NJFB4', 'model': 'Iv2', 'fqdn': 'PC1.lab.local'}

needed_keys = ['fqdn', 'serial_number', 'model', 'uptime']

for key, val in my_dictionary.items():
    if key in needed_keys:
        print('{key} : {val}'.format(key=key, val=val))

在python3中的单独行上在字典中打印特定的值和键

3 个答案: