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Vision #2184

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Vision #2184

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9c98b78
Merge pull request #1 from vaexio/master
xdssio Apr 28, 2021
4678b80
Merge branch 'vaexio:master' into master
xdssio Dec 31, 2021
fef5996
basic implementation
xdssio Aug 19, 2022
9ae4ade
working v1
xdssio Aug 22, 2022
5d70c32
v2 works
xdssio Aug 22, 2022
2853113
upload image data for testing
xdssio Aug 24, 2022
7e734d5
add filename
xdssio Aug 24, 2022
06968ce
added tests
xdssio Aug 24, 2022
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21 changes: 17 additions & 4 deletions packages/vaex-core/vaex/dataframe.py
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Original file line number Diff line number Diff line change
Expand Up @@ -332,6 +332,16 @@ def is_datetime(self, expression):
def is_string(self, expression):
return vaex.array_types.is_string_type(self.data_type(expression))

def is_image(self, expression):
try:
import PIL
except ModuleNotFoundError:
raise RuntimeError("Please install pillow for image support")
if self.data_type(expression) != object:
return False
value = self.dropna(column_names=[expression]).head(1)[expression].values[0]
return hasattr(value, '_repr_png_')

def is_category(self, column):
"""Returns true if column is a category."""
column = _ensure_string_from_expression(column)
Expand Down Expand Up @@ -3988,7 +3998,7 @@ def table_part(k1, k2, parts):
if columns_sliced is not None and j >= columns_sliced:
column_index += 1 # skip over the slice/ellipsis
value = values[name][i]
value = _format_value(value)
value = _format_value(value, value_format=format)
values_list[column_index+1][1].append(value)
# parts += ["</tr>"]
# return values_list
Expand All @@ -4011,7 +4021,10 @@ def table_part(k1, k2, parts):
values_list = dict(values_list)
# print(values_list)
import tabulate
table_text = str(tabulate.tabulate(values_list, headers="keys", tablefmt=format))
tablefmt = format
if tablefmt == "html":
tablefmt = "unsafehtml"
table_text = str(tabulate.tabulate(values_list, headers="keys", tablefmt=tablefmt))
# Tabulate 0.8.7+ escapes html :()
table_text = table_text.replace('&lt;i style=&#x27;opacity: 0.6&#x27;&gt;', "<i style='opacity: 0.6'>")
table_text = table_text.replace('&lt;/i&gt;', "</i>")
Expand Down Expand Up @@ -4052,7 +4065,7 @@ def table_part(k1, k2, parts):
parts += ["<td><i style='opacity: 0.6'>{:,}</i></td>".format(i + k1)]
for name in column_names:
value = data_parts[name][i]
value = _format_value(value)
value = _format_value(value, value_format=format)
parts += ["<td>%r</td>" % value]
parts += ["</tr>"]
return parts
Expand Down Expand Up @@ -4084,7 +4097,7 @@ def _output_css(self):
def _repr_mimebundle_(self, include=None, exclude=None, **kwargs):
# TODO: optimize, since we use the same data in both versions
# TODO: include latex version
return {'text/html':self._head_and_tail_table(format='html'), 'text/plain': self._head_and_tail_table(format='plain')}
return {'html': self._head_and_tail_table(format='html'), 'text/plain': self._head_and_tail_table(format='plain')}

def _repr_html_(self):
"""Representation for Jupyter."""
Expand Down
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