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--- devwiki:python [2023/12/03 17:02] – [Install related] ying
+++ devwiki:python [2024/03/21 08:53] – [Online Python run] ying
@@ Line 1: / Line 1: @@
+====== Modern Python Practice ======
+  * nowaday, now one use python 2.x anymore, use python 3 standard, use this
+    * use pathlib instead of os.path
+    * use f"{keyword}" instead of "{0}".format(keyword), unless it is easier
@@ Line 4: / Line 11: @@
   * https://jupyter.org/try-jupyter/retro/notebooks/?path=notebooks/Intro.ipynb
+  * to install locally: <code>pip3 install --upgrade pip</code>
 ====== Install related ======
@@ Line 936: / Line 944: @@
 except OSError:
     pass
+# method 3: all in one check and create if needed, like method 2 but not need try and except since it will be ok for exist
+os.makedirs(os.path.dirname(output_path), exist_ok=True)
 </code>
   * write python data<code python>
@@ Line 2369: / Line 2380: @@
         send_button.click()
 </code>
+====== Python and interaction with other API ======
+Telegram
+  - search @BotFather on telegram
+    * manual: https://core.telegram.org/bots/api
+  - in the chat, type /newbot, then type your bot "botname", then type your bot "botusername_bot"
+  - now, your bot api key will show up, copy and save it
+  - now search your bot "botusername_bot" to start chat with it
+  - in python, use requests to get the chat from the bot, try one more time if no result <code python>
+import requests
+the_key = "api_key"
+url = "https://api.telegram.org/bot{0}/getUpdates".format(the_key)
+response = requests.get(url)
+result = response.json()
+print(result)
+</code>
+  - once you got result in json, you will find the chat id. <code python>result['result']
+# the list of all chat spec your bot received, yours is likely the first one.
+my_chat_info = result['result']
+my_msg_info = my_chat_info[0]['message']
+# it got info of: chat, date, from, message_id, text
+my_chat_id = my_msg_info['chat']['id']
+</code>
+  - to send a text to that chat from your bot side <code python>
+reply_text = 'hello world'
+url = "https://api.telegram.org/bot{key}/sendMessage?chat_id={id}&text={reply}".format(**{'key':the_key, 'id':my_chat_id,'reply':reply_text})
+response = requests.get(url)
+</code>
+  - now, you should have got the reply from your bot <code python>
+result = response.json()
+send_state = result['ok']
+send_result = result['result']
+# chat (first_name, id, type); date:int; message_id; text
+</code>