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+# WECHAT NOTIFY
+
+Many scripts today may take a long time to run, such as deep learning tasks. We wonder to check the results immediately after its accomplishment but keeping an eye on the process is not desirable.
+
+This project is aimed to notify you through WeChat when certain command is completed.
+
+## requirements
+
+This package rely on `requests`.
+
+```bash
+pip3 install requests
+```
+
+### SERVER CHAN
+
+This project rely on [SERVER CHAN](http://sc.ftqq.com/3.version) to push notifications to WeChat. Please follow the instructions on the website and **set your SCKEY to environment variable** as `SERVER_CHAN_TOKEN`.
+
+Your command's output and error will be write to file `stdout` and `stderr` regardless of whether notification will be push or not.
+
+## usage
+
+```bash
+notify [bash command]
+```
+
+Note that special chars of bash, such as `>`, need to be escaped so that the script can capture the corrent bash command. For example:
+
+```bash
+notify python train.py \> trail.log
+```
+
+## example
+
+WECHAT_NOTIFY will push three kinds of notifications.
+
+* [Success]: inform you [what command, start time, how long the command takes, last three lines of output(if exists)]
+    <img src='imgs/success.png' height=300>
+* [Failed]: inform you [what command, start time, how long the command takes, last three lines of stderr(if exists)]
+    <img src='imgs/failed.png' height=300>
+    <!-- ![img](imgs/failed.png) -->
+* [Keyboard Interrupt]: inform you [what command, start time, 'Keyboard Interrupt']
+    <img src='imgs/kayboard.png' height=300>
+    <!-- ![img](imgs/kayboard.png) -->
+
+## TODO
+
+- [ ] unit test
+- [ ] Email support
+- [ ] test on WeChat Work
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diff --git a/setup.py b/setup.py
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+from setuptools import setup
+
+setup(name="wechat-notify",
+    description="notify you on Wechat when certain task is completed",
+    version="1.0",
+    author="Tab_version",
+    author_email="tabvision@bupt.edu.cn",
+    packages=['wechat_notify'],
+    install_requires=[
+          'requests',
+      ],
+    entry_points = {
+        'console_scripts': ['notify=wechat_notify.notify:main'],
+    },
+    include_package_data=True,
+)
diff --git a/wechat_notify/__init__.py b/wechat_notify/__init__.py
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diff --git a/wechat_notify/notify.py b/wechat_notify/notify.py
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+++ b/wechat_notify/notify.py
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+import sys
+import os
+import subprocess
+import requests
+import time
+
+def build_parser():
+    if len(sys.argv) == 1:
+        raise ValueError('please input command')
+    return sys.argv[1:]
+
+
+def send_request(output, err, process, token, command, start, duration, is_win):
+    if output is not None:
+        output = output.decode('utf-8').split('\r\n') if is_win else output.decode('utf-8').split('\n')
+        with open('stdout', 'w') as f:
+            f.write('\n'.join(output))
+    if err is not None:
+        err = err.decode('utf-8').split('\r\n') if is_win else err.decode('utf-8').split('\n')
+        with open('stderr', 'w') as f:
+            f.write('\n'.join(err))
+    temp = None
+    # import ipdb; ipdb.set_trace()
+    if process.poll() == 0:
+        if output is not None:
+            output = [''] * 3  + output
+            temp = 'the following are last three lines of stdout:\n' + '\n'.join(output[-3:])
+        post_str = r'https://sc.ftqq.com/' + token + '.send?' + f'text=[Scuucess] command: ' + ' '.join(command) + f'&desp=start at {time.ctime(int(start))}\ttake time: {duration}\t' + (temp if temp is not None else '')
+        requests.post(post_str)
+    else:
+        if err is not None:
+            err = [''] * 3 + err
+            temp = 'the following are last three lines of stderr:\n' + '\n'.join(err[-3:])
+        # import ipdb; ipdb.set_trace()
+        post_str = r'https://sc.ftqq.com/' + token + '.send?' + f'text=[Failed] command: ' + ' '.join(command) + f'&desp=start at {time.ctime(int(start))}\ttake time: {duration}\terror code: {process.poll()}'+ (temp if temp is not None else '')
+        print(post_str)
+        requests.post(post_str)
+
+
+
+def init():
+    try:
+        token = os.environ['SERVER_CHAN_TOKEN']
+    except KeyError:
+        print('environment variable `SERVER_CHAN_TOKEN` unfound')
+        exit(1)
+    return token
+
+def main():
+    token = init()
+    start = time.time()
+    try:
+        command = build_parser()
+        process = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        output, err = process.communicate()
+
+    except KeyboardInterrupt:
+        print('keyboard')
+        process.kill()
+        requests.post(r'https://sc.ftqq.com/' + token + '.send?' + f'text=[Failed] command: ' + ' '.join(command) + f'&desp=start at {time.ctime(int(start))}\nbecause of Keyboard Interrupt')
+        exit(0)
+
+    duration = time.time() - start
+    is_win = (sys.platform == 'win32')
+    send_request(output=output, err=err, duration=duration, is_win=is_win,start=start, token=token, command=command, process=process)
+
+
+
+if __name__ == "__main__":
+    main()