Python snippets for vs code

python.json

{
    // Place your snippets for python here. Each snippet is defined under a snippet name and has a prefix, body and 
    // description. The prefix is what is used to trigger the snippet and the body will be expanded and inserted. Possible variables are:
    // $1, $2 for tab stops, $0 for the final cursor position, and ${1:label}, ${2:another} for placeholders. Placeholders with the 
    // same ids are connected.
    // Example:
    // "Print to console": {
    // 	"prefix": "log",
    // 	"body": [
    // 		"console.log('$1');",
    // 		"$2"
    // 	],
    // 	"description": "Log output to console"
    // }
    "Default file": {
        "prefix": "python",
        "body": [
            "def main():",
            "   pass",
            "",
            "if __name__ == '__main__':",
            "   main()",
        ],
    },
    "Time execution": {
        "prefix": "time",
        "body": [
            "import time",
            "tick = time.time()",
            "",
            "print(f'Elapsed time: {time.time() - tick:.4f} seconds')",
        ],
    },
    "Page through list": {
        "prefix": "page",
        "body": [
            "step = 4",
            "for i in range(0, len(mylist), step):",
            "    page = mylist[i : i + step]",
            "    print(page)",
        ],
    },
    "write": {
        "prefix": "write",
        "body": [
            "with open('file.txt', 'w') as w:",
            "    w.write(f\"\\n\")"
        ],
    },
    "Read lines": {
        "prefix": "fromlines",
        "body": [
            "with open('file.txt', 'r') as r:",
            "    data = r.read().splitlines()",
        ],
        "description": "Read from lines"
    },
    "Save to lines": {
        "prefix": "tolines",
        "body": [
            "with open('file.txt', 'w') as w:",
            "    for d in data:",
            "       w.write(d + '\\n')",
        ],
        "description": "Read from lines"
    },
    "Read from json": {
        "prefix": "fromjson",
        "body": [
            "import json",
            "with open('file.json', 'r') as r:",
            "    data = json.load(r)",
        ],
        "description": "Read from json file"
    },
    "Save to json": {
        "prefix": "tojson",
        "body": [
            "import json",
            "with open('file.json', 'w', encoding='utf-8') as w:",
            "    json.dump(data, w, ensure_ascii=False)",
        ],
        "description": "Save to json file"
    },
    "Read from pickle": {
        "prefix": "frompickle",
        "body": [
            "import pickle",
            "with open('file.pickle', 'rb') as r:",
            "    data = pickle.load(r)",
        ],
        "description": "Read from pickle file"
    },
    "Save to pickle": {
        "prefix": "topickle",
        "body": [
            "import pickle",
            "with open('file.pickle', 'wb') as w:",
            "    pickle.dump(data, w)",
        ],
        "description": "Save to pickle file"
    },
    "Read from csv": {
        "prefix": "fromcsv",
        "body": [
            "import csv",
            "with open('some.csv', newline='') as f:",
            "    reader = csv.reader(f)",
            "    for row in reader:",
            "        print(row)",
        ],
        "description": "Read from csv file"
    },
    "Save to csv": {
        "prefix": "tocsv",
        "body": [
            "import csv",
            "with open('some.csv', 'w', newline='') as w:",
            "    writer = csv.writer(w)",
            "    writer.writerows(someiterable)",
        ],
        "description": "Save to csv file"
    },
}