human
Solve in Python:
Given a non-negative integer numRows, generate the first numRows of Pascal's triangle.

In Pascal's triangle, each number is the sum of the two numbers directly above it.

Example:

Input: 5
Output:
[
     [1],
    [1,1],
   [1,2,1],
  [1,3,3,1],
 [1,4,6,4,1]
]
 ... Can you provide a the Python program you requested?
assistant
#Here is the Python program you requested.

class Solution:
     def generate(self, numRows):
         """
         :type numRows: int
         :rtype: List[List[int]]
         """
         A = []
         for i in range(numRows):
             A.append([1 for _ in range(i+1)])
             for j in range(1, i):
                 A[i][j] = A[i-1][j-1] + A[i-1][j]
         return A