TypeError when running image example about captcha

[wil3]

So heres what I had to do to get the example running. installing pillow will fail without libjpeg-dev. The example will fail without compiling Pillow with libfreetype

sudo apt-get install libfreetype6-dev
sudo apt-get install libjpeg-dev
sudo pip uninstall Pillow
sudo pip install -U Pillow

The libfreetype error can be reference here python-pillow/Pillow#1375

However there is now a new issue, the assertion fails:

assert isinstance(data, BytesIO)

If you uncomment this out it works. The actual type of data is

<type 'cStringIO.StringO'>

[intlabs]

I am seeing the same issue, did you manage to solve it?

[lepture]

Could you show me the dependencies?

[wil3]

@intlabs I did not, ended up using a different implementation http://www.pythonbackend.com/topic/1434357520

@lepture This is from the readme example, which dependencies are you referring too? Heres my output from pip list

adium-theme-ubuntu (0.3.4)
apt-xapian-index (0.45)
argparse (1.2.1)
backports.ssl-match-hostname (3.4.0.2)
beautifulsoup4 (4.2.1)
blinker (1.4)
boto (2.38.0)
captcha (0.2)
ccsm (0.9.11.3)
certifi (2015.9.6.2)
cffi (1.2.1)
chardet (2.0.1)
colorama (0.2.5)
command-not-found (0.3)
compizconfig-python (0.9.11.3)
ConfigArgParse (0.9.3)
cryptography (1.0)
cvxopt (1.1.4)
debtagshw (0.1)
decorator (3.4.0)
defer (1.0.6)
dirspec (13.10)
duplicity (0.6.23)
enum34 (1.0.4)
gyp (0.1)
hpack (1.1.0)
html2text (2015.6.21)
html5lib (0.999)
httplib2 (0.8)
idna (2.0)
ipaddress (1.0.14)
ipython (1.2.1)
Jinja2 (2.7.2)
joblib (0.7.1)
lockfile (0.8)
lxml (3.4.4)
MarkupSafe (0.18)
matplotlib (1.3.1)
mitmproxy (0.13)
MySQL-python (1.2.3)
netlib (0.13.1)
nose (1.3.1)
numexpr (2.2.2)
numpy (1.8.2)
oauthlib (0.6.1)
oneconf (0.3.7)
openpyxl (1.7.0)
otpauth (1.0.1)
PAM (0.4.2)
pandas (0.13.1)
passlib (1.6.5)
patsy (0.2.1)
pexpect (3.1)
Pillow (2.3.0)
pip (1.5.4)
piston-mini-client (0.7.5)
pyasn1 (0.1.8)
pycparser (2.14)
pycrypto (2.6.1)
pycups (1.9.66)
pycurl (7.19.3)
pygobject (3.12.0)
pyOpenSSL (0.15.1)
pyparsing (2.0.1)
pyperclip (1.5.11)
pyserial (2.6)
pysmbc (1.0.14.1)
pystache (0.5.4)
python-apt (0.9.3.5ubuntu1)
python-dateutil (1.5)
python-debian (0.1.21-nmu2ubuntu2)
pytz (2012c)
pyutil (2.0.0)
pyxdg (0.25)
pyzmq (14.0.1)
reportlab (3.0)
requests (2.2.1)
scipy (0.13.3)
sessioninstaller (0.0.0)
setuptools (3.3)
simplegeneric (0.8.1)
simplejson (3.3.1)
simpy (3.0.8)
six (1.5.2)
software-center-aptd-plugins (0.0.0)
SQLAlchemy (1.0.8)
statsmodels (0.5.0)
sympy (0.7.4.1)
system-service (0.1.6)
tables (3.1.1)
tornado (4.2.1)
Twisted-Core (13.2.0)
Twisted-Web (13.2.0)
unity-lens-photos (1.0)
urllib3 (1.7.1)
urwid (1.3.0)
vboxapi (1.0)
wheel (0.24.0)
wsgiref (0.1.2)
xdiagnose (3.6.3build2)
xlrd (0.9.2)
xlwt (0.7.5)
z-base-36 (1.0.1)
zbase32 (1.1.5)
zope.interface (4.0.5)

[lepture]

@wil3 upgrade Pillow

This package used draw_arc function of Pillow:

File "/usr/lib/python2.7/dist-packages/PIL/ImageDraw.py", line 164, in arc
self.draw.draw_arc(xy, start, end, ink)