talib issue

helper.py

@@ -1,7 +1,49 @@
 import pandas as pd
-import talib as ta
 import numpy as np
 
+# check if the library folder already exists, to avoid building everytime you load the pahe
+# import streamlit as st
+import requests
+import os
+import sys
+import subprocess
+if not os.path.isdir("/tmp/ta-lib"):
+
+    # Download ta-lib to disk
+    with open("/tmp/ta-lib-0.4.0-src.tar.gz", "wb") as file:
+        response = requests.get(
+            "http://prdownloads.sourceforge.net/ta-lib/ta-lib-0.4.0-src.tar.gz"
+        )
+        file.write(response.content)
+    # get our current dir, to configure it back again. Just house keeping
+    default_cwd = os.getcwd()
+    os.chdir("/tmp")
+    # untar
+    os.system("tar -zxvf ta-lib-0.4.0-src.tar.gz")
+    os.chdir("/tmp/ta-lib")
+    os.system("ls -la /app/equity/")
+    # build
+    os.system("./configure --prefix=/home/appuser")
+    os.system("make")
+    # install
+    os.system("make install")
+    # back to the cwd
+    os.chdir(default_cwd)
+    sys.stdout.flush()
+
+# add the library to our current environment
+from ctypes import *
+
+lib = CDLL("/home/appuser/lib/libta_lib.so.0.0.0")
+# import library
+try:
+    import talib as ta
+except ImportError:
+    subprocess.check_call([sys.executable, "-m", "pip", "install", "--global-option=build_ext", "--global-option=-L/home/appuser/lib/", "--global-option=-I/home/appuser/include/", "ta-lib"])
+finally:
+    import talib as ta
+
+    
 def format_date(df):
     format = '%Y-%m-%d %H:%M:%S'
     df['Datetime'] = pd.to_datetime(df['date'] + ' ' + df['time'], format=format)