添加国旗头像

Author: lzjun

webargstest.py

@@ -0,0 +1,65 @@
+import re
+
+from flask import Flask, jsonify, request
+from webargs import fields
+from webargs.flaskparser import use_args
+
+app = Flask("hello")
+
+
+@app.route("/api/login", methods=["POST"])
+@use_args({"username": fields.Str(required=True)},
+          location="json")
+def login(args):
+    name = args['username']
+    password = args['password']
+    return jsonify({"code": 200, "msg": "ok"})
+
+
+@app.route("/api/login", methods=["POST"])
+def login3():
+    data = request.get_json()
+    email = data.get("email")
+    if not email or re.match(r"(^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\.[a-zA-Z0-9-.]+$)", email):
+        return jsonify({"code": 400, "msg": "参数有误"}), 400
+    password = data.get("password")
+    if not password or len(password) < 6:
+        return jsonify({"code": 400, "msg": "参数有误"}), 400
+    # 数据库查询
+    return jsonify({"code": 200, "msg": "ok"})
+
+
+from webargs import fields, ValidationError
+
+
+def must_exist_in_db(val):
+    if val != 1:
+        raise ValidationError("id not exist")
+
+
+hello_args = {"name": fields.Str(missing="Friend"),
+              "id": fields.Integer(required=True, validate=must_exist_in_db)}
+
+
+@app.route("/", methods=["GET"])
+@use_args(hello_args, location="query")
+def hello(args):
+    """A welcome page."""
+    return jsonify({"message": "Welcome, {}!".format(args["name"])})
+
+
+@app.errorhandler(422)
+@app.errorhandler(400)
+def handle_error(err):
+    headers = err.data.get("headers", None)
+    messages = err.data.get("messages", ["Invalid request."])
+    if headers:
+        return jsonify({"errors": messages}), err.code, headers
+    else:
+        return jsonify({"errors": messages}), 400
+
+
+#
+
+if __name__ == '__main__':
+    app.run(port=5000)

国旗头像/__init__.py

@@ -0,0 +1,23 @@
+from PIL import Image
+
+"""
+注意：
+1、运行前请确保安装了python3环境
+2、请先安装PIL库，命令是： pip install PIL
+3、遇到任何问题可通过关注公众号【Python之禅】获得作者的帮助
+"""
+
+
+def main():
+    avatar = Image.open("header.jpg")  # 加载头像
+    flag = Image.open("flag.jpg")  # 加载国旗
+    avatar_width, avatar_height = avatar.size  # 获取头像宽高
+    flag_size = (int(avatar_width / 3), int(avatar_height / 3))
+    flag = flag.resize(flag_size, Image.ANTIALIAS)  # 将国旗大小缩放到头像的 1/9
+    avatar.paste(flag, (avatar_width - flag_size[0], avatar_height - flag_size[1]))  # 放置在头像右下角
+    avatar.show()
+    avatar.save("new_avatar.jpg")  # 保存新头像
+
+
+if __name__ == '__main__':
+    main()