Python|从元组列表中删除所有字符串

给定一个包含整数和字符串的元组列表，任务是从元组列表中删除所有字符串。

例子：

Input : [(1, 'Paras'), (2, 'Jain'), (3, 'GFG'), (4, 'Cyware')]
Output :   [(1), (2), (3), (4)]

Input : [('string', 'Geeks'), (2, 225), (3, '111')]
Output : [(), (2, 225), (3,)]

方法 #1：使用 filter() 方法

# Python code to remove all strings from a list of tuples
  
# Check function to check isinstance
def check(x):
    return not isinstance(x, str)
      
# creating list of tuples
listOfTuples = [('string', 'Paras'), (2, 'Jain'), (3, 'GFG'),
                                 (4, 'Cyware'), (5, 'Noida')]    
  
# using filter 
output = ([tuple(filter(check, x)) for x in listOfTuples])
  
# printing output
print(output)

输出：

[(), (2,), (3,), (4,), (5,)]

方法#2：

# Python code to remove all strings from a list of tuples
  
# Creating list of tuples
listOfTuples = [('string', 'Geeks'), (2, 225), (3, '111'),
                                 (4, 'Cyware'), (5, 'Noida')]    
  
  
output = [tuple(j for j in i if not isinstance(j, str))
                                 for i in listOfTuples]
  
# printing output
print(output)

输出：

[(), (2, 225), (3,), (4,), (5,)]