iota.codecs.TrytesDecodeError

[bernardoaraujor]

Iḿ trying to run the examples on Ubuntu 16.
Examples 03 and 08 don't work:

bernardoaraujo@laptop0092:~/dev/python-iota-workshop$ pip install -r requirements.txt 
Looking in indexes: https://artifactory.tttech.com/api/pypi/infrastructure.pypi/simple, https://pypi.python.org/simple/
Requirement already satisfied: PyOTA==2.0.7 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from -r requirements.txt (line 1)) (2.0.7)
Requirement already satisfied: pyzmq==18.0.1 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from -r requirements.txt (line 2)) (18.0.1)
Requirement already satisfied: pysha3 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from PyOTA==2.0.7->-r requirements.txt (line 1)) (1.0.2)
Requirement already satisfied: typing; python_version < "3.0" in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from PyOTA==2.0.7->-r requirements.txt (line 1)) (3.7.4.1)
Requirement already satisfied: filters in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from PyOTA==2.0.7->-r requirements.txt (line 1)) (1.3.2)
Requirement already satisfied: six in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from PyOTA==2.0.7->-r requirements.txt (line 1)) (1.11.0)
Requirement already satisfied: requests[security]>=2.4.1 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from PyOTA==2.0.7->-r requirements.txt (line 1)) (2.18.4)
Requirement already satisfied: py2casefold; python_version < "3.0" in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from filters->PyOTA==2.0.7->-r requirements.txt (line 1)) (1.0.1)
Requirement already satisfied: regex in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from filters->PyOTA==2.0.7->-r requirements.txt (line 1)) (2019.11.1)
Requirement already satisfied: pytz in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from filters->PyOTA==2.0.7->-r requirements.txt (line 1)) (2018.9)
Requirement already satisfied: python-dateutil in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from filters->PyOTA==2.0.7->-r requirements.txt (line 1)) (2.8.0)
Requirement already satisfied: class-registry in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from filters->PyOTA==2.0.7->-r requirements.txt (line 1)) (2.1.2)
Requirement already satisfied: certifi>=2017.4.17 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (2017.11.5)
Requirement already satisfied: chardet<3.1.0,>=3.0.2 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (3.0.4)
Requirement already satisfied: idna<2.7,>=2.5 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (2.6)
Requirement already satisfied: urllib3<1.23,>=1.21.1 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (1.22)
Requirement already satisfied: cryptography>=1.3.4; extra == "security" in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (2.4.1)
Requirement already satisfied: pyOpenSSL>=0.14; extra == "security" in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (17.5.0)
Requirement already satisfied: enum34; python_version < "3" in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from cryptography>=1.3.4; extra == "security"->requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (1.1.6)
Requirement already satisfied: asn1crypto>=0.21.0 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from cryptography>=1.3.4; extra == "security"->requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (0.24.0)
Requirement already satisfied: cffi!=1.11.3,>=1.7 in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from cryptography>=1.3.4; extra == "security"->requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (1.11.5)
Requirement already satisfied: ipaddress; python_version < "3" in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from cryptography>=1.3.4; extra == "security"->requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (1.0.22)
Requirement already satisfied: pycparser in /home/bernardoaraujo/.local/lib/python2.7/site-packages (from cffi!=1.11.3,>=1.7->cryptography>=1.3.4; extra == "security"->requests[security]>=2.4.1->PyOTA==2.0.7->-r requirements.txt (line 1)) (2.19)
You are using pip version 18.1, however version 19.3.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.
bernardoaraujo@laptop0092:~/dev/python-iota-workshop$ 
bernardoaraujo@laptop0092:~/dev/python-iota-workshop$ 
bernardoaraujo@laptop0092:~/dev/python-iota-workshop$ 
bernardoaraujo@laptop0092:~/dev/python-iota-workshop$ python code/e03_receive_hello.py 


Transaction SUYOJZ9DDGFCCGEPQAHGWAHQSIZVVJHBODFEZT9TXPHPQFNQMCU9ZIKZO9QFSKZZ9R9YQGEIQNIRQR999 (tag HELLOWORLD99999999999999999):
I did it!


Transaction HNCNZZKFDMWKZ9N9NXPMBCXAOGKZUGKRCKTMRPGLHEDUXPPAELUWMTJHTOQRLEMWHMSWIDWSFSGCQN999 (tag HELLOWORLD99999999999999999):
You did it!


Transaction KBOOLQGBQKU9KNJDLJZHLGNFQSEYBTRHHDVPPWWTBUHHUIADKPTJNQKTMMIY9RNFFMXPYIMXGVKQNC999 (tag MARIO9999999999999999999999):
Traceback (most recent call last):
  File "code/e03_receive_hello.py", line 36, in <module>
    print(message.decode())
  File "/home/bernardoaraujo/.local/lib/python2.7/site-packages/iota/types.py", line 565, in decode
    bytes_ = decode(trytes, AsciiTrytesCodec.name, errors)
  File "/home/bernardoaraujo/.local/lib/python2.7/site-packages/iota/codecs.py", line 156, in decode
    'input': input,
iota.codecs.TrytesDecodeError: 'trytes_ascii' codec can't decode value; tryte sequence has odd length.
bernardoaraujo@laptop0092:~/dev/python-iota-workshop$ 
bernardoaraujo@laptop0092:~/dev/python-iota-workshop$ 
bernardoaraujo@laptop0092:~/dev/python-iota-workshop$ 
bernardoaraujo@laptop0092:~/dev/python-iota-workshop$ python code/e08_receive_data.py 
Traceback (most recent call last):
  File "code/e08_receive_data.py", line 45, in <module>
    pprint.pprint(json.loads(full_message.decode()))
  File "/home/bernardoaraujo/.local/lib/python2.7/site-packages/iota/types.py", line 565, in decode
    bytes_ = decode(trytes, AsciiTrytesCodec.name, errors)
  File "/home/bernardoaraujo/.local/lib/python2.7/site-packages/iota/codecs.py", line 187, in decode
    'input': input,
iota.codecs.TrytesDecodeError: 'trytes_ascii' codec can't decode trytes WJ at position 2186-2187: ordinal not in range(255)

Problem seems to be related to https://github.com/iotaledger/iota.py/blob/master/iota/codecs.py
Not sure whether I should report this here or at PyOTA's repo, but my guess is that probably something changed in the API and the example codes need to be adapted accordingly.