| """ | |
| Tamahkar Alqoritma ilə yol məsələsini həll edək. | |
| - Qarşıda 2 üsul var: | |
| 1. Node-lar open node listine gore secilir, yuksek heuristici olan secilir. | |
| 2. Node-lar ancaq qarsidaki yola gore secilir, meselen bu misalda, elaqesi olmayan node-a kecmek mumken deyil | |
| - Məs., E-dən D-yə keçmək olmaz, çünki yol yoxdur-qonşuluq yoxdur). | |
| 3. Normal Greedy axtarış aparılsın, open node-lar işlədilsin; Hər open node-un heuristic məsafəsi yadda saxlanılsın. | |
| - Buna görə də node-swithcing algorithm işlədiyi müddətcə path-per-path aparılacaq. Cavab isə insan yeriyəbiləcəyi tam path olacaq. | |
| - Seçilən node-un (switched) tam path-i qeyddə qalır. |
| """ | |
| Tamahkar Alqoritma ilə yol məsələsini həll edək. | |
| - Qarşıda 2 üsul var: | |
| 1. Node-lar open node listine gore secilir, yuksek heuristici olan secilir. | |
| 2. Node-lar ancaq qarsidaki yola gore secilir, meselen bu misalda, elaqesi olmayan node-a kecmek mumken deyil | |
| - Məs., E-dən D-yə keçmək olmaz, çünki yol yoxdur-qonşuluq yoxdur). | |
| """ | |
| import concurrent.futures |
| class CustomizedGeckoDriverDownloader(GeckoDriverDownloader): | |
| """ | |
| Subclass GeckoDriverDownloader in order to fix finding accurate arch. | |
| """ | |
| def get_download_url(self, version="latest"): | |
| """ | |
| Default of this method finds arch of the python interpreter rather than OS. | |
| To view the original source of this method, go to: |
| body { | |
| font-family: Helvetica, arial, sans-serif; | |
| font-size: 14px; | |
| line-height: 1.6; | |
| padding-top: 10px; | |
| padding-bottom: 10px; | |
| background-color: white; | |
| padding: 30px; } | |
| body > *:first-child { |
1-) implicit wait has the highest priority
It currently is being controlled with page_delay parameter with the default value of 25
page_delay parameter is customizable by user2-) What is implicit wait?
3-) What is explicit wait?
| def truncate_float(number, precision, round=False): | |
| """ Truncate (shorten) a floating point value at given precision """ | |
| # don't allow a negative precision [by mistake?] | |
| precision = abs(precision) | |
| if round: | |
| # python 2.7+ supported method [recommended] | |
| short_float = round(number, precision) |
| def explicit_wait(browser, track, ec_params, logger, timeout=35, notify=True): | |
| """ | |
| Explicitly wait until expected condition validates | |
| :param browser: webdriver instance | |
| :param track: short name of the expected condition | |
| :param ec_params: expected condition specific parameters - [param1, param2] | |
| :param logger: the logger instance | |
| """ | |
| # list of available tracks: |
| @contextmanager | |
| def new_tab(browser): | |
| """ USE once a host tab must remain untouched and yet needs extra data- get from guest tab """ | |
| try: | |
| # add a guest tab | |
| browser.execute_script("window.open()") | |
| # switch to the guest tab | |
| browser.switch_to.window(browser.window_handles[1]) | |
| yield |
| def find_user_id(browser, username, logger): | |
| try: | |
| user_id = browser.execute_script( | |
| "return window._sharedData.entry_data.PostPage[0].graphql.shortcode_media.owner.id") | |
| except WebDriverException: | |
| try: | |
| browser.execute_script("location.reload()") | |
| user_id = browser.execute_script( | |
| "return window._sharedData.entry_data.PostPage[0].graphql.shortcode_media.owner.id") | |
| except WebDriverException: |
| def ping_server(host): | |
| """ | |
| Returns True if host (str) responds to a ping request. | |
| Remember that a host may not respond to a ping (ICMP) request even if the host name is valid. | |
| """ | |
| # Ping command count option as function of OS | |
| param = "-n" if system().lower()=="windows" else "-c" | |
| # Building the command. Ex: "ping -c 1 google.com" | |
| command = ' '.join(["ping", param, '1', str(host)]) |