Python: How to get HTML text that has Jinja templates using requests or aiohttp?

I am using python, request or aiohttp method to get page, and BeautifulSoup4 for parsing webpage. Server HTML page uses jinja template, so when i get this page using requests or aiohttp, i get something like this:

<a href="/{{username}}" class='pr'>

but if you open this page using browser, code looks like this:

<a href="/gavrilka" class='pr'>

request code:

import requests
url = 'MY URL'
header = {"MY HEADERS"}
payload = {}
response = requests.request("GET", url, headers=headers, data = payload)
print(response.text.encode('utf8'))

aiohttp code:

import aiohttp
url = 'MY URL'
header = {"MY HEADERS"}
payload = {}
async with aiohttp.ClientSession() as session:
    async with session.get(base_url, headers=headers) as resp:
        data = await resp.text()
        print(data)
    await session.close()

How should i do to get correct page text?

Answer

Used selenium and phantomjs, and now it works.

from selenium import webdriver
from bs4 import BeautifulSoup

url = "https://yourlink"

driver = webdriver.PhantomJS() 
driver.set_window_size(1024, 768)  # optional
driver.get(url)
page_source = driver.page_source
soup = BeautifulSoup(page_source, 'lxml')