作者：Brian Tarbox

译者：豌豆花下猫@Python猫

英文：https://blog.symops.com/2022/08/31/amazon-codewhisperer

转载请保留作者&译者&来源信息

试用：用 Python 从 S3 读取数据

Python猫注：截至2022年9月17日，这个服务还未全面开放。

若要试用，可在官网申请：https://pages.awscloud.com/codewhisperer-sign-up-form.html

附官方介绍：https://aws.amazon.com/cn/blogs/compute/introducing-amazon-codewhisperer-in-the-aws-lambda-console-in-preview

Function to open an S3 file

# Function to open an S3 file
def open_s3_file(filename):
    """
    :param filename:
    :return:
    """
    s3 = boto3.resource('s3')
    return s3.Object(bucket, filename).get()['Body'].read()

# Function to get first n lines from a file in S3
def get_first_n_lines_from_s3(filename, n):
    """
    Get the first n lines of a file in S3
    :param filename:
    :param n:
    :return:
    """
    lines = []
    for line in open_s3_file(filename):
        lines.append(line)
        if len(lines) >= n:
            break
    return lines

# Function to find common elements in lists

def find_common_elements(list1, list2)

def find_common_elements(first, second)

# Function to find common elements in lists
def find_common_elements(first, second):
        return list(set(first) & set(second))

  # reverse the list order
  lines.reverse()

CodeWhisperer 是一个重要的生产力助推器

# Function to emit a cloudwatch metric
def put_metric_data(metric_name, metric_data):
    """
    Put a metric data into cloudwatch
    :param metric_name:
    :param metric_data:
    :return:
    """
    cloudwatch = boto3.client('cloudwatch')
    cloudwatch.put_metric_data(
        Namespace='my_namespace',
        MetricData=[
            {
                'MetricName': metric_name,
                'Dimensions': [
                    {
                        'Name': 'string',
                        'Value': 'string'
                    },
                ],
                'Unit': 'Seconds',
                'Value': metric_data
            },
        ]
    )

那么 CodeWhisperer 是一个比我更好的程序员吗?

@dataclass
class InventoryItem:
    """Class for keeping track of an item in inventory."""
    name: str
    unit_price: float
    quantity_on_hand: int = 0

    def total_cost(self) -> float:
        return self.unit_price * self.quantity_on_hand

@dataclass
class InventoryItem:
    """Class for keeping track of an item in inventory."""
    name: str
    unit_price: float
    quantity_on_hand: int = 0

    def total_cost(self) -> float:
        return self.unit_price * self.quantity_on_hand

    # Function that returns whether this item costs more than $10
    def expensive(self) -> bool:
        return self.unit_price > 10

# Function to test InventoryItem class
def test_inventory_item():
     """
    Test InventoryItem class
    :return:
    """
    item = InventoryItem("Widget", 10, 5)
    assert item.name == "Widget"
    assert item.unit_price == 10
    assert item.quantity_on_hand == 5
    assert item.total_cost() == 50
    assert not item.expensive()

CodeWhisperer 的局限性

# Function to find the longest common line in two files
def find_longest_common_line(file1, file2):
    """
    Find the longest common line in two files
    :param file1:
    :param file2:
    :return:
    """
    with open(file1, 'r') as f1:
        with open(file2, 'r') as f2:
            for line in f1:
                if line in f2:
                    return line

写在最后