Demag GUI failing to open on some data with ValueError: DataFrame index must be unique for orient='index'.

[moonshoes87]

What command was run:

demag_gui.py -WD data_files/3_0/McMurdo/ -v

What happened:

You are running:
pmagpy 4.2.26.post3
pmagpy-cli 4.2.26.post5
-I- Using online data model
-I- Getting method codes from earthref.org
-I- Importing controlled vocabularies from https://earthref.org
data model: 3.0
Traceback (most recent call last):
  File "/Users/nebula/Python/PmagPy/programs/demag_gui.py", line 8683, in <module>
    main()
  File "/Users/nebula/Python/PmagPy/programs/demag_gui.py", line 8679, in main
    start(WD=WD, write_to_log_file=write_to_log_file, DM=data_model, meas_file=meas_file)
  File "/Users/nebula/Python/PmagPy/programs/demag_gui.py", line 8651, in start
    meas_file=meas_file)
  File "/Users/nebula/Python/PmagPy/programs/demag_gui.py", line 260, in __init__
    self.Data_info = self.get_data_info()  # Read  er_* data
  File "/Users/nebula/Python/PmagPy/programs/demag_gui.py", line 4586, in get_data_info
    data_er_locations = loc2_data.to_dict('index')
  File "/Users/nebula/anaconda3/envs/pmagpy/lib/python3.6/site-packages/pandas/core/frame.py", line 1316, in to_dict
    "DataFrame index must be unique for orient='index'."
ValueError: DataFrame index must be unique for orient='index'.
/Users/nebula/anaconda3/envs/pmagpy/bin/pythonw: line 3: 46839 Segmentation fault: 11  /Users/nebula/anaconda3/envs/pmagpy/python.app/Contents/MacOS/python "$@"

What I expected to happen:

Demag GUI to open without errors.

Data file(s):

See data_files/3_0/McMurdo

Screenshot(s):

PmagPy version: