data_dict = json.loads(json_data) # 需要查找的key key_to_check = "phone" # 判断key是否存在 if has_nested_key(data_dict, key_to_check): print(f"The key '{key_to_check}' exists in the JSON data.") else: print(f"The key '{key_to_check}' does not exist in the JSON data....
@app.route("/grade", methods=["POST"]) def update_grade(): json_data = request.get_json() if "student_id" not in json_data: abort(400) # Update database return "success!" Here you ensure that the key student_id is part of the request. Although this validation works, it doesn’...
import requests response = requests.get('https://api.example.com/data') try: response.raise_for_status() # Raises an HTTPError if the status is 4xx, 5xx data = response.json() print(data) except requests.exceptions.HTTPError as err: print(f'HTTP Error: {err}') 4. Setting Timeout ...
$ bash pyenv-installer 用户可以在运行之前检查 shell 脚本,甚至可以使用git checkout锁定特定的修订版本。 遗憾的是,pyenv 不能在 Windows 上运行。 安装pyenv 后,将其与运行的 shell 集成在一起是很有用的。我们通过向 shell 初始化文件(例如,.bash_profile)添加以下内容来实现这一点: export PATH="~/.pyen...
Python Nested Dictionary to JSON First, a dictionary in Python is a collection of key-value pairs, where each key is unique and has a value of any data type; even the value can be another dictionary. So, when a dictionary contains another dictionary, then this concept is called a nested...
A common practice to avoid bugs due to mutable arguments is to assign None as the default value and later check if any value is passed to the function corresponding to that argument. Example: def some_func(default_arg=None): if not default_arg: default_arg = [] default_arg.append("some...
Use 'callable(<obj>)' or 'isinstance(<obj>, collections.abc.Callable)' to check if object is callable. When this cheatsheet uses '<function>' as an argument, it means '<callable>'. class Counter: def __init__(self): self.i = 0 def __call__(self): self.i += 1 return self....
if (v == NULL || !PyCode_Check(v)) { Py_XDECREF(v); PyErr_SetString(PyExc_RuntimeError, "Bad code object in .pyc file"); goto error; } fclose(fp); co = (PyCodeObject *)v; v = run_eval_code_obj(co, globals, locals); if (v && flags) flags->cf_flags |= (co->co_fl...
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synonym ( word ) if items : return choice ( json . loads ( items ) ) [ ' text ' ] @cached ( cache ) def antonym ( word ) : items = vb . antonym ( word ) if items : return choice ( items [ ' text ' ] ) for raw_word in blank_space . strip ( ) . split ( ' ' )...