ihnorton · December 20, 2019 15:39
diff --git a/application.py b/application.py
 from flask import Flask
 # from https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create-deploy-python-flask.html#python-flask-create-app

 libp=b"/opt/python/run/venv/lib64/python3.6/site-packages/tiledb/libtiledb.cpython-36m-x86_64-linux-gnu.so"
 import os, ctypes, sys
 ctypes.CDLL(libp, os.RTLD_DEEPBIND)

 import tiledb

 # print a nice greeting.
 def say_hello(username = "World"):
    txt = '<p>Hello %s!</p>\n' % username
    txt += '<p>tiledb version is: {}'.format(tiledb.version.version)
    import subprocess
    try:
      extpath = subprocess.check_output(['find', '/opt/python', '-name', 'libtiledb.cpython*']).decode('UTF-8')
      txt += '<p> extension path is: {}'.format(extpath)
    except Exception as exc:
      txt += "got exception: " + str(exc)
    return txt

 # some bits of text for the page.
 header_text = '''
    <html>\n<head> <title>EB Flask Test</title> </head>\n<body>'''
 instructions = '''
    <p><em>Hint</em>: This is a RESTful web service! Append a username
    to the URL (for example: <code>/Thelonious</code>) to say hello to
    someone specific.</p>\n'''
 home_link = '<p><a href="/">Back</a></p>\n'
 footer_text = '</body>\n</html>'

 # EB looks for an 'application' callable by default.
 application = Flask(__name__)

 # add a rule for the index page.
 application.add_url_rule('/', 'index', (lambda: header_text +
    say_hello() + instructions + footer_text))

 # add a rule when the page is accessed with a name appended to the site
 # URL.
 application.add_url_rule('/<username>', 'hello', (lambda username:
    header_text + say_hello(username) + home_link + footer_text))

 # run the app.
 if __name__ == "__main__":
    # Setting debug to True enables debug output. This line should be
    # removed before deploying a production app.
    application.debug = True
    application.run()
diff --git a/diff.diff b/diff.diff
 diff --git a/20191218-bruce-eb-segfault/eb-flask/application.py b/20191218-bruce-eb-segfault/eb-flask/application.py
 index 6b57c83..079a8a6 100644
 --- a/20191218-bruce-eb-segfault/eb-flask/application.py
 +++ b/20191218-bruce-eb-segfault/eb-flask/application.py
 @@ -1,8 +1,22 @@
 from flask import Flask

 +libp=b"/opt/python/run/venv/lib64/python3.6/site-packages/tiledb/libtiledb.cpython-36m-x86_64-linux-gnu.so"
 +import os, ctypes, sys
 +ctypes.CDLL(libp, os.RTLD_DEEPBIND)
 +
 +import tiledb
 +
 # print a nice greeting.
 def say_hello(username = "World"):
 -    return '<p>Hello %s!</p>\n' % username
 +    txt = '<p>Hello %s!</p>\n' % username
 +    txt += '<p>tiledb version is: {}'.format(tiledb.version.version)
 +    import subprocess
 +    try:
 +      extpath = subprocess.check_output(['find', '/opt/python', '-name', 'libtiledb.cpython*']).decode('UTF-8')
 +      txt += '<p> extension path is: {}'.format(extpath)
 +    except Exception as exc:
 +      txt += "got exception: " + str(exc)
 +    return txt

 # some bits of text for the page.
 header_text = '''
diff --git a/requirements.txt b/requirements.txt
 Click==7.0
 Flask==1.0.2
 itsdangerous==1.1.0
 Jinja2==2.10.3
 MarkupSafe==1.1.1
 Werkzeug==0.16.0
 tiledb==0.5.3
	from flask import Flask
	# from https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create-deploy-python-flask.html#python-flask-create-app

	libp=b"/opt/python/run/venv/lib64/python3.6/site-packages/tiledb/libtiledb.cpython-36m-x86_64-linux-gnu.so"
	import os, ctypes, sys
	ctypes.CDLL(libp, os.RTLD_DEEPBIND)

	import tiledb

	# print a nice greeting.
	def say_hello(username = "World"):
	txt = '<p>Hello %s!</p>\n' % username
	txt += '<p>tiledb version is: {}'.format(tiledb.version.version)
	import subprocess
	try:
	extpath = subprocess.check_output(['find', '/opt/python', '-name', 'libtiledb.cpython*']).decode('UTF-8')
	txt += '<p> extension path is: {}'.format(extpath)
	except Exception as exc:
	txt += "got exception: " + str(exc)
	return txt

	# some bits of text for the page.
	header_text = '''
	<html>\n<head> <title>EB Flask Test</title> </head>\n<body>'''
	instructions = '''
	<p><em>Hint</em>: This is a RESTful web service! Append a username
	to the URL (for example: <code>/Thelonious</code>) to say hello to
	someone specific.</p>\n'''
	home_link = '<p><a href="/">Back</a></p>\n'
	footer_text = '</body>\n</html>'

	# EB looks for an 'application' callable by default.
	application = Flask(__name__)

	# add a rule for the index page.
	application.add_url_rule('/', 'index', (lambda: header_text +
	say_hello() + instructions + footer_text))

	# add a rule when the page is accessed with a name appended to the site
	# URL.
	application.add_url_rule('/<username>', 'hello', (lambda username:
	header_text + say_hello(username) + home_link + footer_text))

	# run the app.
	if __name__ == "__main__":
	# Setting debug to True enables debug output. This line should be
	# removed before deploying a production app.
	application.debug = True
	application.run()
	diff --git a/20191218-bruce-eb-segfault/eb-flask/application.py b/20191218-bruce-eb-segfault/eb-flask/application.py
	index 6b57c83..079a8a6 100644
	--- a/20191218-bruce-eb-segfault/eb-flask/application.py
	+++ b/20191218-bruce-eb-segfault/eb-flask/application.py
	@@ -1,8 +1,22 @@
	from flask import Flask

	+libp=b"/opt/python/run/venv/lib64/python3.6/site-packages/tiledb/libtiledb.cpython-36m-x86_64-linux-gnu.so"
	+import os, ctypes, sys
	+ctypes.CDLL(libp, os.RTLD_DEEPBIND)
	+
	+import tiledb
	+
	# print a nice greeting.
	def say_hello(username = "World"):
	- return '<p>Hello %s!</p>\n' % username
	+ txt = '<p>Hello %s!</p>\n' % username
	+ txt += '<p>tiledb version is: {}'.format(tiledb.version.version)
	+ import subprocess
	+ try:
	+ extpath = subprocess.check_output(['find', '/opt/python', '-name', 'libtiledb.cpython*']).decode('UTF-8')
	+ txt += '<p> extension path is: {}'.format(extpath)
	+ except Exception as exc:
	+ txt += "got exception: " + str(exc)
	+ return txt

	# some bits of text for the page.
	header_text = '''
	Click==7.0
	Flask==1.0.2
	itsdangerous==1.1.0
	Jinja2==2.10.3
	MarkupSafe==1.1.1
	Werkzeug==0.16.0
	tiledb==0.5.3