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This article mainly explains "how to achieve simultaneous live broadcast in WeChat groups with tens of thousands of people by Python". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Next, let's let the editor take you to learn "how to achieve simultaneous live streaming of thousands of people in WeChat groups by Python".

First, background introduction

The demand is simple: 24 Wechat groups (with a total of 10,000 people) can be forwarded synchronously.

I believe that many companies will have the same demand!

Second, functional design

How to do multi-group live streaming? The simple thing is to use a robot to do second-level forwarding:

Create a new live keynote group

Pull three robots and speakers into the group.

The messages sent by the speaker to the group are automatically forwarded to the group by the robot.

Reply in the speaker group after the robot retweets.

Continue to send messages

In order to make it easier for everyone to understand, Brother Pig drew a simple design:

According to the above design, our functional design has four main elements: speaker group, speaker, retweet group, robot administrator.

Third, function realization

1. Load 4 elements of LVB

According to the above design diagram, we know that we need a live speaker group first, then a speaker in the live group, and then load the forwarding group that needs to be forwarded.

We can write all this information in a configuration file.

Then when the robot starts, we call the method of loading the configuration file, and the method of loading the configuration file calls the method of loading live broadcast information!

First, load the robot administrator, and then call the method of loading group information in the middle of the method!

The following is the detailed code of the load_live method, which mainly does three things: load the speaker group, check whether there is a speaker in the speaker group, and load the live group.

Def load_live (bot): "load the groups needed for LVB"# set the switch bot.is_live_mode = config.is_live_mode if not bot.is_live_mode: return'\ n LVB mode is not enabled, you can set is_live_mode to True in the config.py file!' Live_status_detail =''# 1. Load the lecture group live_group = bot.groups (). Search (config.live_group) if len (live_group)

< 1: bot.live_group = None bot.is_live_mode = False return f'\n主讲群：未找到群名包含「{config.live_group}」的主讲群！\n开启群直播失败！\n\n可在主讲群中发任意消息，然后管理员使用命令：开启群直播模式，从新加载直播信息！' elif len(live_group) >

1: bot.live_group = live_group [0] live_status_detail + = f'\ nSpeaker group: find multiple keynote groups whose names contain "{config.live_group}". By default, select the first group ({live_group [0]}) as the keynote group!' Else: bot.live_group = live_group [0] # 2, Load presenter live_group_members = bot.live_group.members for member in live_group_members: if member.name = = config.live_speaker: live_status_detail + = f'\ nSpeaker: "{config.live_speaker}" 'bot.live_speaker = config.live_speaker break else: live_status_detail + = f '\ nSpeaker: no keynote speaker "{config.live_speaker}" was found in the keynote group. \ nfailed to start group LVB!' Bot.is_live_mode = False return live_status_detail # 3. Load forwarding group forward_groups = search_groups (bot, config.forward_groups) bot.forward_groups = forward_groups live_status_detail + = f'\ n forwarding group: messages will be forwarded to these groups: {str (forward_groups)}, a total of {len (forward_groups)}. \ n\ nIf there is any omission, you can send any message in these groups, and then the administrator uses the command: turn on the group live broadcast mode and reload the live broadcast information!' Return live_status_detail

Here we have loaded the four elements needed for live broadcasting: robot administrator, keynote group, keynote speaker, and forwarding group.

two。 Implement to forward messages

After all the information we need is loaded, we can start to forward it.

The general idea is:

Define a method to receive group messages

Upon receiving the group message, determine whether the message needs to be forwarded. The judgment condition is: enable the live broadcast mode + the current message is in the host group + the person who sends the message is the speaker.

If the three conditions for appeal are met, the message will be forwarded to the group

Reply in the speaker group after forwarding: as soon as the retweet is finished, the speaker can make the next sentence.

Let's look at the code!

Let's take a look at the specific code of wx_command.remote_forward (msg).

Def remote_forward (msg): "" forward message "forward_groups = [] for group in msg.bot.forward_groups: msg.forward (group, suffix='') forward_groups.append (group.name) time.sleep (random.random ()) return forward_groups

This method is simple: loop through the groups that need to be forwarded, and then send it one by one, with a random pause within one second after sending, in order to prevent messages from being sent too frequently.

Here the code for multi-group forwarding is complete, and we can start testing.

IV. Testing

1. Test flow

After the code is written, we can start testing, and the overall idea of the test is:

Create a new speaker group, and then pull the robot and the speaker in.

Build 24 new test groups and pull the robot in.

Start the project to put the robot into live mode

The speaker simulates the real live broadcast in the group and pays attention to controlling the speed of the live broadcast.

The live broadcast is over. Turn off the robot.

two。 One robot reposts 24 groups.

Brother Pig thought at the beginning: use a robot, and then forward it to 24 groups, the configuration file is something like this:

However, it is found that this will lead to messages not being sent, and Wechat prompt messages are sent too frequently.

No matter how the message was sent, it could not be sent out. Brother Pig almost gave up here, thinking that he could not be forwarded in multiple groups.

3. Three Wechat retweets to 24 groups

Brother Zhu went online to see if there was any free forwarding software, then looked at wetools (a windows-based Wechat operating tool) and found that their paid version of Wechat could be forwarded to up to nine groups.

So Brother Pig guessed that one Wechat could only retweet up to nine groups. Then can't I just forward it with three Wechat?

The above configuration file means I need to start the program three times, change three Wechat, and then change the forward_groups configuration each time.

Many students still do not know: PyCharm how to run a project many times at the same time?

It seems like a good idea to forward 24 WeChat groups with three Wechat posts. Can it be successful in practice?

The live broadcast test lasted almost 30 minutes, and it ran correctly without message loss and robot dropping.

Sent during this period: text, pictures, files, voice.

5. Actual live broadcast

24 Wechat groups broadcast live synchronously, to be honest, few people have done it before. I consulted a lot of colleagues who have done group live streaming before, and they are basically copied manually.

However, the smooth test the day before the live broadcast gave Brother Pig a lot of confidence!

The actual LVB process is probably as follows:

Modify the announcement a few hours in advance and release the group live broadcast news in the evening.

It is forbidden to bring new people into the group to prevent those who send ads from coming in.

Sign in half an hour in advance, and randomly kick out several group members who have not punched in after the live broadcast.

Stop clocking in 5 minutes before the live broadcast and begin to prepare for the live broadcast

The live broadcast starts at 20:00 sharp.

The live broadcast ends at about 20:40 to collect everyone's feedback.

VI. Problems encountered

In fact, the LVB code is very simple and not much, but because of the large number of groups and the large number of users, it is inevitable to encounter a lot of problems. Brother Pig will summarize the problems encountered below:

The problem of the maximum number of forwarding groups: at first, Brother Pig thought of using only one robot to forward to 24 groups, but the message could not be sent, and he was prompted to send messages too frequently. Finally, he saw that the maximum number of forwarding groups on wetools was 9, so he only considered using three Wechat, each forwarding eight groups.

two。 Forwarding mode question: before it was a robot, the speaker sent it directly to the forwarding robot, and then it became three robots, how to send messages to the three robots? The forwarding mode of the speaker group was adopted at the prompt of a friend.

3. Can not load the group problem: sometimes after starting the project, you will not be able to load the group you want, then you need to send any message in the group, and then turn on the live mode again, just remember! Remember!

4. There is an offline problem with the robot in the actual live broadcast: the robot was not dropped during the test, but it occurred once in the actual live broadcast. Just log in to the robot again.

5. A lot of Wechat can't log on to the web version of Wechat: this is really a headache, and it's hard to find a few that can log on to the web version.

Of course, the above are all technical problems. About the operational problems that occur during the live broadcast, for example, some people still affect reading after stopping signing in, the live broadcast speed is too fast, the content is not simple enough, and so on. If you want to know more about these details, you can add Brother Pig Wechat.

At this point, I believe you have a deeper understanding of "how to achieve simultaneous live broadcast in WeChat groups of ten thousand people by Python". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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