Use PackageLoader for templates.

MANIFEST.in

@@ -5,3 +5,4 @@ include *.md
 include LICENSE.txt
 
 recursive-include doc *
+recursive-include basicswap/templates *

basicswap/http_server.py

@@ -13,7 +13,7 @@ import threading
 import http.client
 import urllib.parse
 from http.server import BaseHTTPRequestHandler, HTTPServer
-from jinja2 import Environment, FileSystemLoader
+from jinja2 import Environment, PackageLoader
 
 from . import __version__
 from .util import (
@@ -36,8 +36,8 @@ from .basicswap import (
     ABS_LOCK_TIME,
 )
 
-file_loader = FileSystemLoader('basicswap/templates')
-env = Environment(loader=file_loader)
+
+env = Environment(loader=PackageLoader('basicswap', 'templates'))
 
 
 def getCoinName(c):

setup.py

@@ -17,6 +17,7 @@ setuptools.setup(
     long_description_content_type="text/markdown",
     url="https://github.com/tecnovert/basicswap",
     packages=setuptools.find_packages(),
+    include_package_data=True,
     classifiers=[
         "Programming Language :: Python :: 3",
         "License :: OSI Approved :: MIT License",