AttributeError: module 'numpy' has no attribute 'unicode'

Hi!

I've stumbled into an issue and would love any help / suggestions. This run on a Python 3.8 on Mac M1.

I'm trying to run this code on my own data (tried it with ac gtfs too):

path = '/Milano/comune-di-milano_20160216_1409.zip'

# Automatically identify the busiest day and
# read that in as a Partidge feed
feed = pt.get_representative_feed(path)

# Set a target time period to
# use to summarize impedance
start = 7*60*60  # 7:00 AM
end = 10*60*60  # 10:00 AM

# Converts feed subset into a directed
# network multigraph
G = pt.load_feed_as_graph(feed, start, end)

and get an error:

AttributeError: module 'numpy' has no attribute 'unicode'

Tried to reinstall everything and install from scratch, but to no avail.

The full output of the error is this: 
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
Cell In[2], line 6
      2 path = '/Users/DANIEL/WORK/MIC-HUB/GTFS Milano/comune-di-milano_20160216_1409.zip'
      4 # Automatically identify the busiest day and
      5 # read that in as a Partidge feed
----> 6 feed = pt.get_representative_feed(path)
      8 # Set a target time period to
      9 # use to summarize impedance
     10 start = 7*60*60  # 7:00 AM

File /opt/homebrew/lib/python3.8/site-packages/peartree/paths.py:95, in get_representative_feed(file_loc, day_type)
     93 # Extract service ids and then trip counts by those dates
     94 try:
---> 95     service_ids_by_date = ptg.read_service_ids_by_date(file_loc)
     96     trip_counts_by_date = ptg.read_trip_counts_by_date(file_loc)
     98 # Raised by partridge if no valid dates returned

File /opt/homebrew/lib/python3.8/site-packages/partridge/readers.py:72, in read_service_ids_by_date(path)
     70 """Find all service identifiers by date"""
     71 feed = load_raw_feed(path)
---> 72 return _service_ids_by_date(feed)

File /opt/homebrew/lib/python3.8/site-packages/partridge/readers.py:156, in _service_ids_by_date(feed)
    153 results: DefaultDict[datetime.date, Set[str]] = defaultdict(set)
    154 removals: DefaultDict[datetime.date, Set[str]] = defaultdict(set)
--> 156 service_ids = set(feed.trips.service_id)
    157 calendar = feed.calendar
    158 caldates = feed.calendar_dates

File /opt/homebrew/lib/python3.8/site-packages/partridge/gtfs.py:16, in _read_file.<locals>.getter(self)
     15 def getter(self) -> pd.DataFrame:
---> 16     return self.get(filename)

File /opt/homebrew/lib/python3.8/site-packages/partridge/gtfs.py:48, in Feed.get(self, filename)
     46 df = self._cache.get(filename)
     47 if df is None:
---> 48     df = self._read(filename)
     49     df = self._filter(filename, df)
     50     df = self._prune(filename, df)

File /opt/homebrew/lib/python3.8/site-packages/partridge/gtfs.py:48, in Feed.get(self, filename)
     46 df = self._cache.get(filename)
     47 if df is None:
---> 48     df = self._read(filename)
     49     df = self._filter(filename, df)
     50     df = self._prune(filename, df)

File /opt/homebrew/lib/python3.8/site-packages/partridge/gtfs.py:102, in Feed._read_csv(self, filename)
     99 with open(path, "rb") as f:
    100     encoding = detect_encoding(f)
--> 102 df = pd.read_csv(path, dtype=np.unicode, encoding=encoding, index_col=False)
    104 # Strip leading/trailing whitespace from column names
    105 df.rename(columns=lambda x: x.strip(), inplace=True)

File /opt/homebrew/lib/python3.8/site-packages/numpy/__init__.py:284, in __getattr__(attr)
    281     from .testing import Tester
    282     return Tester
--> 284 raise AttributeError("module {!r} has no attribute "
    285                      "{!r}".format(__name__, attr))

AttributeError: module 'numpy' has no attribute 'unicode'

kuanb / peartree

AttributeError: module 'numpy' has no attribute 'unicode' #178